We had a great moment in Mathew's room in London. The host is very friendly and welcoming. He even had tube's map and books about travelling in London that we could read. Although the toilet is very small, it is private (no need to go out of the room) and the rest of the room is spacious. It is also very clean and comfy.
The flat is very well located, only 2 minutes from Oval station and then a few minutes to Victoria or King Cross St-Pancras stations.
Excellent stay overral, I definately recommend it, as it is even better than some hotels!