This is going to be very thorough so I apologize in advance for the long review.
My GF and I spent five nights at David's. We're New Yorkers and wanted to watch the Giants vs Packers in London. From Heathrow we took the Piccadilly line to Leicester square, 19 atops and about 50 mins. Very easy and efficient. All the subways/tubes use "tap on and tap off" with your credit/debit so make sure to bring cards that have this feature. It also accepts g pay/apple pay. From Leicester square it's a 5 minute walk to the apt. Check in is a breeze as you'll be provided a 4 digit code to unlock a lockbox that houses the keys. The entrance door to the building can be a bit tricky to open at times, might have to pull the door in and use a little muscle to turn the key. You then walk up 2 flights of narrow uneven carpeted stairs which was pretty difficult with a large heavy suitcase.
Bedroom/Living room:
The beds/comforter/pillows are super clean and comfy, there's a small L-shape couch that is probably the most uncomfortable thing I've ever sat on, it should definitely be replaced with a simple love seat/convertible couch and a large coffee table. There's a glass table with 3 chairs that was just used to pile clothes on top off, a simple 4-drawer dresser would be much more helpful in this space as there isn't much room to put clothing. There's a closet with a long pole and about 15 hangers next to the glass table but other than that, we were living out of our suitcases which was messy and stressful. On the other side of the couch there's a bookcase with some interesting books, a blow-dryer, and a lamp that sits atop but the cord won't reach the outlet. I personally think some simple shelving and maybe a hamper would be more efficient than a book case. It's very difficult finding room to put your clothing. Plenty of lighting with the 3 large windows during the day but can be a bit dark with just the ceiling lights at night. The TV is mounted on the wall in-between the beds and can swivel left and right, it's a Roku tv so you'll have to log into your own streaming service accounts to watch stuff, or just use the free apps. That being said, the Roku remote doesn't work and was not resolved or even acknowledged when I mentioned it, ended up just downloading the Roku app on my phone and using my phone as a remote. There are only 3 wall outlets in the room and 2 of them are behind the bed, not sure why extension cords or power strips aren't provided, a simple fix... The bedroom is situation in front of the building so it can get really loud during the night, as is expected being in the heart of soho. If you want quiet don't look for places in soho. The entrance door into the apt has a large gap on the bottom where it meets the floor, our 2nd night we had a little visit from a mouse that freaked out my GF. After that we'd stuff towels under the door at night and had no further issues.
The kitchen:
Can definitely use an upgrade on appliances but it has all the necessities - coffee maker, esspresso w/pods, microwave, toaster that barely works, and a washing machine, although you'd need to bring/buy your own laundry powder/detergent. There are switches on the outlets that the appliances are plugged into that need to be turned on for them to work. There are plenty of cups/plates/utensils supplied. If you decide to do some cooking of your own there's an electric stove and oven with pots and pans, no paper towels or tissues provided so we had to buy our own. Only toilet paper is provided. There is also a small refrigerator.
The Bathroom:
If you're American the bathroom may be a bit of a shock, there's no shower door or shower curtains, it's just a tub with a small glass pane splash guard to the left of the shower head. It's basically just showering in a tub completely exposed, the tub is very high as well, it's set up about 6 or 8 inches, almost slipped a few times getting in and out, super slippery tub, highly suggest getting slip gaurd pads for the tub. Water pressure is ok. Toilet paper holder needs to be replaced. Paint peeling and chipping from the ceiling, a simple coat of paint would do wonders. Some black mold visible in some.places on the ceiling and the grout. The bathroom definitely needs some deep cleaning. There's also no outlet in the bathroom my gf had to blow-dry her hair by the bookcase in the bedroom, I would have to take down the wall mirror by the entrance and put it by the bookcase or by the microwave, wherever she could find an outlet.
Heating/cooling:
Was told that there was a "portable heater" above the microwave which had instructions for use, there was no portable heater in the apt, there was a wall thermostat that did not work nor have any instructions. I replaced the batteries to the unit myself and still wouldn't work This was not resolved and most early mornings around 5am I'd have to put the oven on and leave it open so my GF wouldn't freeze as the temperature would drop to about 1⁰C/33⁰F (we went in early October). This should have been resolved immediately. There are 2 portable cooling fans in the bedroom xloset.
Location:
You are truly in the heart of soho, the apt literally sits in between 2 bars, plenty of coffee shops, restaurants, breakfast spots, late night spots, a very reasonably priced clothing store called TK Maxx (called TJ Maxx in the states), the British museum is a 10 min walk, Buckingham palace 24 min walk, big Ben/Westminster