To start with, it's an excellent location. It's not right in the center of London, granted, but it's just down the road from the Bermondsey tube station, from which you can whiz into the center on the Jubilee line, and there are several buses that run right next to the flat. Plus, it's quiet -- the flat faces inside the estate and north, not onto the busy Jamaica Road. There's a Sainsbury's across the road to get all your groceries or readymade meals if you're cooking, the Servewell Cafe is great for a fry-up, and you can walk to the Thames in about two minutes, with lovely views of Tower Bridge, the Gherkin, etc.
The flat was very clean and in great shape, with everything working. The washroom/toilet/bathroom has been recently renovated, and has a nice shower head with real water pressure to show for it. The host seems to have added more pictures since, but I had assumed from the original pics that it was smaller, yet there are two comfy bedrooms and a nice living room with a futon that could become a third bed, a tiny balcony, and a massive television that seemed to pick up a lot of channels. The kitchen is well-decked with all sorts of implements, pots, etc. The internet was fast.
We were arriving off a redeye flight, so I'd asked if we could get in there early, and the host was wonderfully accommodating, saying we were welcome to come as soon as the previous guests had checked out and leave our bags while it was cleaned. A delay at the airport added some time and when we showed up, still much earlier than official check-in, he was there and the place was already ready. He noted that he lived around the corner and was able to help with anything, and sure enough was very responsive when I had a question. And he left some basics in the fridge and told us we were welcome to them.
Great value for money. Some might see that it's at a housing estate and worry, but it's a really nice flat and a charming estate (The estate has a little playground, too, if you have kids. Our six year-old loved it). The only thing that would've made it better (in this uncharacteristically hot English summer) was an oscillating fan or two. But we paid so much less than most crappy hotels would've charged, and much less than most people with comparable looking flats were charging. I'd stay there again in a heartbeat, and am really happy we chose this place.