Robert and David's house is located in a really convenient location in Central London, about a 15 minute walk to Soho and Covent Garden. The area is really safe even in the early a.m.'s, the room is clean and spacious, and because the house is vertically built, you get your own space and privacy and you never feel crowded even when there are others in the house.
I only ran into Robert and David a few times during my stay after the first day but they were both incredibly nice, responsive, and helpful! The first night when I arrived, David was so kind as to personally walk me from the house to Charlotte St when I asked about restaurants that were open despite that it was 10:30pm at night and really cold out.
I would definitely recommend!