Plymouth Central Apartments

Location: 9 Gascoyne Place, Plymouth, gb

Star Rating: 8.6 Stars

Property Type: Apartments

About this Property

Important Information

Policies

Check-in: 04:00 PM - 10:00 PM

Check-out: 10:00 AM

Amenities & Facilities

• Non-smoking rooms
• Family rooms
• Non-smoking throughout
• Fire extinguishers
• Invoice provided
• Smoke alarms
• CCTV outside property
• Television in common areas
• Free wired internet
• Internet access
• Japanese garden
• Covered parking

Rooms Available

• One-Bedroom Apartment

  Featuring a private entrance, this apartment is consisted of of 1 living room, 1 separate bedroom and 1 bathroom with a bath and a shower. In the well-fitted kitchen, guests will find a stovetop, a refrigerator, kitchenware and an oven. The apartment offers a flat-screen TV with streaming services, a washing machine, a seating area, a dining area as well as a quiet street view. The unit offers 2 beds.

  Max Occupancy: 3 (3 Adults)

  • Shower
  • TV
  • Hair dryer
  • Refrigerator
  • Desk
  • Seating Area
  • Fan
  • Toilet
  • Microwave
  • Washing machine
  • Private bathroom
  • Heating
  • Satellite channels
  • Kitchen
  • Private entrance
  • Sofa
  • Dining area
  • Electric kettle
  • Tumble dryer
  • Wardrobe or closet
  • Oven
  • Stovetop
  • Toaster
  • Cleaning products
  • Linen
  • Entire unit located on ground floor
  • Private apartment in building
  • Drying rack for clothing
  • Toilet paper
  • Sofa bed
  • Trash cans
  • Wine glasses
  • Shampoo
  • Conditioner
  • Body soap
  • Socket near the bed
  • Smoke alarm
  • Fire extinguisher
  • Carbon monoxide detector

• Two-Bedroom Apartment

  This spacious apartment consists of 1 living room, 2 separate bedrooms and 1 bathroom with a bath and free toiletries. In the fully equipped kitchen, guests will find a stovetop, a refrigerator, kitchenware and an oven. The apartment provides a washing machine, a private entrance, a seating area, a flat-screen TV with streaming services, as well as a quiet street view. The unit offers 3 beds.

  Max Occupancy: 8 (5 Adults)

  • Shower
  • TV
  • Hair dryer
  • Refrigerator
  • Desk
  • Seating Area
  • Fan
  • Toilet
  • Microwave
  • Washing machine
  • Private bathroom
  • Heating
  • Satellite channels
  • Kitchen
  • Private entrance
  • Sofa
  • Dining area
  • Electric kettle
  • Tumble dryer
  • Wardrobe or closet
  • Oven
  • Stovetop
  • Toaster
  • Bidet
  • Cleaning products
  • Linen
  • Upper floors accessible by stairs only
  • Private apartment in building
  • Drying rack for clothing
  • Toilet paper
  • Sofa bed
  • Trash cans
  • Wine glasses
  • Shampoo
  • Conditioner
  • Body soap
  • Socket near the bed
  • Smoke alarm
  • Fire extinguisher
  • Carbon monoxide detector

• Three-Bedroom Apartment

  This spacious apartment consists of 1 living room, 3 separate bedrooms and 1 bathroom with a bath and free toiletries. The well-fitted kitchen features a stovetop, a refrigerator, kitchenware and an oven. The apartment provides a flat-screen TV with streaming services, a washing machine, a private entrance, a seating area as well as a quiet street view. The unit offers 4 beds.

  Max Occupancy: 8 (5 Adults)

  • Shower
  • TV
  • Hair dryer
  • Refrigerator
  • Desk
  • Seating Area
  • Fan
  • Toilet
  • Microwave
  • Washing machine
  • Private bathroom
  • Heating
  • Satellite channels
  • Kitchen
  • Private entrance
  • Sofa
  • Dining area
  • Electric kettle
  • Wardrobe or closet
  • Oven
  • Stovetop
  • Toaster
  • Cleaning products
  • Linen
  • Upper floors accessible by stairs only
  • Private apartment in building
  • Drying rack for clothing
  • Toilet paper
  • Sofa bed
  • Trash cans
  • Wine glasses
  • Shampoo
  • Conditioner
  • Body soap
  • Socket near the bed
  • Smoke alarm
  • Fire extinguisher
  • Carbon monoxide detector

• Apartment - Ground Floor

  Featuring a private entrance, this apartment is consisted of of 1 living room, 1 separate bedroom and 1 bathroom with a bath and a shower. The well-equipped kitchen features a stovetop, a refrigerator, kitchenware and an oven. The apartment offers a washing machine, a seating area, a dining area, a flat-screen TV with streaming services, as well as a quiet street view. The unit offers 2 beds.

  Max Occupancy: 3 (3 Adults)

  • Shower
  • TV
  • Hair dryer
  • Refrigerator
  • Desk
  • Seating Area
  • Fan
  • Toilet
  • Microwave
  • Washing machine
  • Private bathroom
  • Heating
  • Kitchen
  • Private entrance
  • Sofa
  • Dining area
  • Electric kettle
  • Wardrobe or closet
  • Oven
  • Stovetop
  • Toaster
  • Cleaning products
  • Linen
  • Entire unit located on ground floor
  • Private apartment in building
  • Drying rack for clothing
  • Toilet paper
  • Sofa bed
  • Trash cans
  • Wine glasses
  • Shampoo
  • Conditioner
  • Body soap
  • Socket near the bed
  • Smoke alarm
  • Fire extinguisher
  • Carbon monoxide detector

Guest Reviews

• Danielle (9/5): -
• Nancy (10/5): Home away from home - Very clean and has all the necessities needed I’ll definitely visit again the host Lisa also responds on time it’s worth all your money It wad a 10/10
• Daniel (9/5): I would return. Very nice property and cental to everything. - Location and house. It needs new windows. They rattle and are draughty. Not a deal breaker as the are very old.
• Michelle (9/5): - Location Comfortable Spacious Nothing we didn't like Might be helpful if s couple of things were added to the kitchen- grater, scissors, baking sheets
• Louise (2/5): Very disappointing - Good location with on site parking Mould in oven. Dirt and hairs in bath. Not cleaned to a reasonable standard. One of the beds was broken and one of the rear bedroom windows had been broken and boarded up (badly) and had black mould and was letting cold air in. We reported all the issues on the first night and were assured the property would be cleaned again the following morning. We were staying with my young son (less than 2yrs old). We were offered a hotel room for the evening but it was too late, too much upheaval and would not have been large enough for all of us. We gave the property the opportunity to put the apartment right. But By 1pm the next day the apartment had still not been cleaned so we checked out a day early. Property are refusing a refund.
• Myriam (1/5): -
• Aaron (1/5): -
• virginia (9/5): Good value for money. - Central location with parking. Loads of space and a well equipped kitchen. We've stayed before, and will likely come again. It's an old building, so difficult to keep looking clean. Some nooks and crannies are dusty or looking mouldy. But overall the cleanliness is perfectly fine.
• Moisés (8/5): Conforto e proximidade do centro muito interessante! - Gostei do apartamento, tem um tamanho bom, a cozinha é bem equipada, o lugar é confortável. É bem próximo do centro da cidade. Algumas coisas não são tão legais, tem uma porta muito barulhenta antes de entrar no flat, não adianta fechar com calma, de madrugada parece que alguém está arrombando a porta do flat. Falando em porta, ela não tranca. Outro problema que tive foi levar o lixo para fora, a porta de trás estava sempre fechada, precisava dar a volta na rua.
• Folake (10/5): Accessibility , very comfortable and warm - The setting, very warm and comfortable None
• Sheila (9/5): Perfect for a large family to stay together - Size of the rooms and a parking space Nothing
• Collins (8/5): -
• Kyra (7/5): -
• pemberton (8/5): -
• RobPet (8/5): - Location, On arrival heating on and flat was nice and warm. Comfortable bed and good shower. Being told that an estate agent was doing a viewing during my stay. I felt I had to arrange my day around that when I shouldn't have to after all I had paid to have the flat for the week.
• Polina (10/5): -
• Salah (10/5): - It was very smooth check in very clean and comfy place the location is very good
• Gary (1/5): Cut short our stay and moved to a hotel after 16 hours - Location and the car park space allocated to the let Broken bed, faulty boiler dripping water into the bathroom instead of via outside overflow pipe. Noisier than expected as the windows weren’t double/triple glazed but that is probably beyond the owners control. Front door access pad could be better illuminated. No action taken by owner when on arrival we advised them of our concerns regarding the boiler and the broken bed
• fahad (10/5): But anybody come to plymouth the best place to stay here ,Miss Lisa helpful lady - It’s easy to access Nothing
• fahad (10/5): -
• Kelly (9/5): -
• Engin (6/5): -
• Julia (5/5): Could be amazing if cleaned and maintained properly. - The beds were comfortable and the kitchen, and lounge had all the equipment needed for a pleasant stay. Location was perfect for city centre and Barbican. Although the beds were clean and comfortable, general cleanliness was poor with lots of hair in the bathroom and dust on all surfaces. The boiler in apartment 4 also leaked onto the toilet after each shower and the bath was very heavily stained with limescale and mould. The carpets could also do with a hoover.
• Craig (10/5): Perfect location and good value for money - Clean , comfortable and great location. Communication with Lisa was spot on . Couldn't have been more accommodating. Will definitely use this apartment next timee we are in Plymouth. N/A
• Alastair (8/5): -
• Menifa (9/5): Had a lovely time and the hosts stayed in touch and made sure things went smoothly. -
• Jeremie (10/5): -
• Paul (10/5): -
• Donald (10/5): Topverblijf voor ons - Het appartement ligt in een rustige wijk maar het centrum is toch op loopafstand. Er is een eigen parkeerplaats waar je je auto gratis kan parkeren. Het appartement was mooi groot en het bed prima. Het keukengedeelte had alles om in te kunnen koken. Er zijn meerdere supermarkten in de buurt (ook zijn er meerdere restaurants, pubs en cafees in de buurt). De badkamer voldeed aan onze wensen en er was een wasmachine en droger en droogrek. Onze bovenburen hadden een avond een paar uurtjes een feestje maar ze stopte keurig op tijd, we hadden er geen last van.
• Elio (10/5): -
• MICHALAKIS (9/5): -
• Aggie (1/5): AVOID. Dirty not worth money. - Nothing Not clean, spiders, bedding was not changed. Cleaners came back to clean and didn’t even do anything. Smell of mould. Outdated. Cobwebs everywhere. Cleaners attempted to enter my room without knocking as they thought I was checking out and I was only 2 days into my staff. No response from the owners regarding my lack of satisfaction. AVOID.
• Tracie (6/5): Must have been beautiful in its day but the property needs a lot of TLC … especially for the price ! - Location was great … really great to have worry free off road parking and the beds were really comfortable. Communication from Lisa was really prompt and helpful. Travelled with 90 year old parents and there was 4 flights of stairs.. however due to a mix up with Booking.com this may not have been the room we were originally booked into. At a glance appeared clean however within 5 mins we found quite a few issues. Lounge had not been hovered there was a squidgy tomato on the floor by the sofa and playing cards just under the other sofa…. Windows were falling apart most of the glass panes were broken or missing completely … in one bedroom a whole pane had gone and was covered by a damp piece of chipboard. There were random bits of tape covering cracks that were peeling off.. and worst of all the windows were all screwed shut … the place was like an oven !!!! … talking of ovens that wasn’t too clean either and the extractor fan was covered in old grease. In the bathroom there is a massive piece of flaking bubbled plaster where there has been a leek and nothing has been done with it. Curtain poles and skirtings were thick with dust and there was clumps of dust falling out the radiator in the hall. Lights in one bedroom did not work and almost all the drawers were sealed shut … the ones that weren’t smelt damp and most of the handle were coming away or had fallen off.
• Hallie (10/5): Exceptional -
• Melissa (3/5): A very high value is not worth it. - Location A large and spacious apartment. No acoustics, you hear the noise of the neighbors all the time as if you were inside the apartment itself. I wanted to cook and went to the kitchen. There are no pans suitable for cooking. There are no pans that are good, in fact. I took a shower. There was no hair dryer to dry my hair. I thought it was absurd that such an expensive apartment doesn't have a hair dryer. I've stayed in much cheaper places where I didn't lack anything. The wifi doesn't connect either.
• David (8/5): Great City location apartment - We loved the location and the easy self access. The bedrooms we found spacious and beds comfortable. Streaming tv. WiFi. Central location for food delivery if you require. Helpful host. Fans in every room was a great addition. Not far from attractions shopping nightlife. Would definitely return again. The bathroom is very dated and could do with an upgrade. The windows don’t open. However there are fans. A few minor points. The oven needs a good clean and oven trays could do with replacing. Cobwebs could do with cleaning away.
• Bowes (6/5): We went for a family visit ! - Access to our parking space . Taken up with Vans & a truck . We had to leave our car on yellow lines . My husbands mobility is poor
• Shannon (7/5): Really good on location and price, needs a little more in depth clean in some area. Great place overall though :) - It was a great location and really good on price. Lovely hosts and we really love the QR code for rules and helpful bits. Parking was a little confusing but quickly sorted. Cleanliness was good but not in the kitchen or the bathroom. (Just needs a clean of the freezer and kitchen slides as well as a dust/ mould control in the bathroom) and on the last night the upstairs neighbours kept us up due to screaming and slamming of doors.
• John (10/5): Weekend with friends - Excellent location, close to The Barbican.
• Stephanie (8/5): Pleasant surprise - Quirky layout. High ceilings and bright. Large rooms. Well equipped kitchen. Great location for exploring Plymouth and public transport Front door to flat was awkward to open.
• Sarah (8/5): Very good -
• Madeleine (1/5): Wouldn’t book again. Messed around by staff and not clean even after ‘cleaning’ - I wouldn’t usually leave a review but the beginning of my stay was so chaotic that I feel I need to. 1. I didn’t get the check in instructions until an hour after i was supposed to be able to check in, which was at 4. Despite the reservation saying it would be sent 24 hours in advance. The owner/ host was almost impossible to get a hold of. I had to call booking.com customer service to get an answer. I got the instructions and she (Lisa) was very apologetic. 2. When I got there it hadn’t been cleaned. At this point the owner was answering and she was apologetic, she let me have the code to apartment 5 instead while she worked on a solution. When I got to apartment 5 the door to the loft was open and there was fiber glass insulation everywhere. I let the host know and went back down to apartment 2 to wait. I waited 4 hours for any kind of response. I sent multiple messages and called twice to no avail. By this time it was almost 9. I got a call from a different host and she told me that a cleaning crew would come in the morning and that i should use apartment 5. This baffles me as I am not sure who would think that an apartment littered with fiber glass insulation was a suitable alternative. Maybe they didn’t read my messages properly or were not aware of what I meant? I don’t know. Either way it was all very poor. 3. Probably the most frustrating part was the lack of clear communication. When I went back up to apartment 5 I kept hearing loud thuds from the loft. I couldn’t reach the loft to close it or take a look up there. I couldn’t find a loft pole. I had said on the phone that it didn’t really feel safe. The host brushed me off saying it was very high. In the end I called the non emergency police line and they were kind enough to send two officers round to have a look. Bit over dramatic but I am a woman traveling alone and the hosts instilled me with zero confidence. Turns out the broken open window in the attic was blowing around in the wind.
• Kim (9/5): Superb - Beautiful decorations and lovely spaces, comfy beds, lots of space to chill and perfect location for beach swimming and harbour. Bathroom needs a little refurbishment and windows don't open but they are working on that.
• Lucy (8/5): Very good - Lovely comfy period apartment. Location was great, close to town and Barbican, so handy having allocated parking out the back. Spotlessly clean, everything you could need in the kitchen, huge bedrooms and living area. Great. 10am check out is a bit mean. Windows don't open, might struggle in the summer with no fresh air.
• Linda (10/5): Exceptional -
• Mitch (8/5): Very good -
• Linda (10/5): Great location, comfortable apartment easy off road parking - Great location, easy off road parking in the middle of the city, grand building with well kept apartments.
• Alan (10/5): Great location. Everything you needed was available. Good sized rooms. -
• Rebecca (10/5): Comfortable and easy. - Very homely and extremely comfortable. Unable to open the windows but we appreciated that you supplied fans in every room.
• Nojimudeen (9/5): 👎 - Nice facility, and the location is superb The heating facility is very poor, you need to work it to make the rooms more comfortable for your guests.
• Kelsey (10/5): Exceptional -
• Marteen (10/5): Exceptional - The beds were very comfy, hosts very quickly replied to my questions, brilliant stay !
• Nicky (10/5): Had a great stay - The host responds very quickly & is really helpful. The apartment was easy to access with clear instructions. The place was a great size, the bedrooms were really nice & the beds were very comfy. The location was perfect for us Not much really. Any small issues I had like locating things were quickly resolved by the host, who answered my query very quickly. The latch on the bathroom door didn’t work but it didn’t impact our stay as I was travelling with family
• Michael (10/5): Exceptional - The location is excellent!! Nothing
• Linda (9/5): Superb - Great position, parking was a bonus, nice flat in a well maintained building right in the centre of Plymouth.
• Thomson (3/5): Plymouth central apartments - Good location. Heating didn't work. Poor communication from the host. Hot water in the bathroom was only Luke warm. I had to move apartments twice during my stay.. All in all, not good
• Shannon (10/5): Exceptional - Beautiful apartment friendly host
• Paul (10/5): Exceptional - I only ever stay here when I visit Plymouth. Great apartment Great location Great hosts Not a criticism just some info for other guests be aware apartment on top floor there's four sets of stairs to walk up but worth it for the apartment.
• Johnie (1/5): Extraordinary Rip off .. I’ll stick to Airbnb in future - It was accidentally close to the funeral we were attending .. Doctored photos made it seem spacious, it wasn’t. Damp smell on entering. Cheapest possible toilet roll. Cheapest possible crockery. Cheapest possible bath Matt. 5 tea bags and out of date long life milk. August 24 No shower gel. No hand soap (bathroom) Almost empty washing up, and sugar, no condiments for cooking whatsoever .. filthy oven tray .. broken oven as well as broken extractor hood and kitchen window wouldn’t open, WC almost in the kitchen just behind a door that didn’t even have a catch !! Massively over priced .. if I’d had time to look I could have had a whole house for half the money.. I’m considering making a formal complaint to booking.com
• Rachel (10/5): Exceptional - Great location and was clean with plenty of space. Homely and felt comfortable. Host was flexible and allowed an extra parking space for the two cars. Quiet location One bathroom to share in the apartment. Could do with a little refurbish - shower, new bath etc. heating was difficult to manage.
• Ashwin (10/5): Exceptional -
• Waleed (5/5): Passable -
• Abdullah (1/5): Bad -
• Tony (7/5): Good size bedrooms and great location just 10 minute walk to the Barbican - Good l9cation for the Barbican Nowhere to sit and eat a meal. Bathroom needs an upgrade
• Smaak (8/5): Very good -
• Ayman (7/5): Good - Billows, towels and blanket are smiling bad! No key for washroom Black moulds in the washroom The agent offered me to send a cleaner to have a look but offered rejected as this is very obvious and should be cleaned before we arrive
• Anxhela (8/5): Very good -
• Clive (7/5): Enjoyable. - Crockery and cutlery was a little sparse. The property would benefit if a dishwasher was fitted.
• Jeannie (9/5): A lovely, well equipped home from home. - Excellent communication from Lisa, very clear instructions given for arrival and departure Quite a late check in time, although I didn't ask for an earlier one - this might have been possible.
• Neil (8/5): Well placed flat in Plymouth - Situation..just 10 minutes walk from.Drake Circus and the Box..15 from the Barbican Quirky flat Good to have parking Clean and tidy Excellent host Well equipped kitchen Bathroom a bit tired..no lock on door to bathroom ( toilet cubicle within did have one ) Couldn't open windows so a bit hot
• Soni (7/5): Nice clean place, but bit expensive - It's a good and clean place but bit outdated. Easy acces to local shops. Main attractions are bit far (15 to 20 mins minimum time) if you have young kids, with adults or teenagers its okay. Had all the facilities from fridge to iron. Bed had clean bedsheets. Basic necessities are provided, i.e towel, hand soap. Also they provided fans as it was hot weather. Bit outdated for the price they charge. Could not lock the bathroom door as it had no lock. Bath tub is clean but its so old and way to many scratch its looks dirty. Same for the toilet. Whole bathroom needs to be updated. Some of the Kitchen cabinets were ready to fall out. Please make it look like worth the price.
• Tristan (8/5): Plymouth city centre short break. - The location is near the city centre and on a quiet street. The flat was very clean and up to date furnishings etc. A really good TV. Also loved the unusual lay out. 1, The sofa bed wasn't made up on arrival as requested. Had to do it ourselves. 2, A few, little things. No obvious means to recycle rubbish & a shaving mirror in the bathroom is needed.
• Kathleen (10/5): Lovely apartment in a fantastic central location - A lovely apartment in the centre of Plymouth close to amenities and points of interest. Nothing- it was perfect for us.
• Izzat (10/5): Exceptional - You make feel at home and it is a walking distance to the Mall
• Bruce (9/5): Superb -
• Karen (9/5): Lovely, spacious apartment with character - Great location, close to the centre of Plymouth. I liked the character , space and decor of the apartment - lots of room for a family of four. The road outside is a little noisy
• Daniel (10/5): Lovely stay and friendly service - Nice and spacious and very clean with comfy beds Nothing
• Joel (10/5): Exceptional - Great size apartment, large bedrooms. Everything you need for a long stay. Close to shops and food places
• Virginia (9/5): Spacious, well equipped apartment. - Free parking, though our apartment 1 place was difficult to get into. Comfy, but small bed. Spacious apartment with courtyard to hang up washing. A few dirty kitchen items. Nowhere to hang up towels in the bathroom. Fairly basic kitchen utensils, but adequate. No free to air TV to see the news.
• Simon (9/5): Nice flat in Plymouth - Very nice rooms, comfortable, nicely decorated. Kitchen well equipped. Instructions for access were clear. Parking round the back was very handy. Perhaps slightly overpriced for location and what you get.
• Adrian (6/5): Generous rooms but all windows screwed shut - large property with generous rooms Cleanliness could be better and all windows were screwed shut so unable to open. Not sure what would happen in the event off a fire.
• Sonia (9/5): Very comfortable apartment equipped with everything you'd need for a stay. Location was excellent. -
• Daniel (10/5): Exceptional -
• Willie (9/5): Superb -
• Sandra (8/5): Book with confidence, you are within easy reach of everything. There is nothing not to like about this place. - Great central location, plenty of space within accommodation, everything you need, parking is a bonus, and great comms from owner. Nothing not to like. Only thing that could have made it better for us, and this purely preference, is having black out curtains in the rear bedrooms.
• Erylene (10/5): Exceptional -
• Yeshen (10/5): Exceptional -
• Caitlyn-alice (8/5): Good - The flat was a good size and had all that was needed The boiler was very loud and had to be switch off every night and the mattress was way too solid
• K (3/5): Not worth the money - The internet was wrost, the bed was so very uneven and gave backaches, no cleaning supplies were available, the utensils were unkempt and greasy. We had to buy a pan to cook our food as the provided dishes were unclean and greasy.
• Lucy (10/5): Exceptional -
• Jim (9/5): Luvly jubbly - Great location, clean and home from home
• Richard_dsc (9/5): Pleasant flat near Plymouth town centre - Decent flat near the centre of Plymouth, with shops etc. all close by. Quiet surroundings, decent sized rooms, everything clean and in good order. Helpful and communicative host. Only problem was the instructions for the heating not being clear/accurate, but I managed to work around that. Host said they were planning an update to the heating controls - good!
• Stuart (7/5): Location was great flat was exceptionally clean and had everything we needed!! - Nice location, rooms big and nice and clean The bathroom was a bit dated, shower head needs replaced but good hot water, the only window in the property that opened was the bathroom, windows. Require work so they can be opened, thankfully wasn’t exceptionally hot or really don’t know how we would cope, making food in kitchen got unbearably hot, all in all a good property!!
• Alan (10/5): Exceptional -
• Darren (8/5): Very good - Spacious and warm Kitchen bin full from previous guests.
• Michelle (10/5): Exceptional - Location. Our family could have all 3 apartments Very comfortable Well equipped
• Ruizhi (10/5): Exceptional -
• Athanasia (8/5): Cosy flat in Plymouth - Good location, very spacious and clean flat. Great communication with staff and really appreciated the parking bay at the back of the property. Some issues at first with opening the doors and also the heating switch on via the boiler. There were no face towels nor shower gel.
• Paul (9/5): Superb -
• Paul (10/5): Exceptional - Everything you need was there just felt like home from home location was fantastic tesco and sainsburys just round the corner cinema,restaurants and pubs/bars are within a few minutes walk 4 or 5 minutes walk from town center so 5 star stay for me and will definitely stay again. Nothing.

Photos