The room is very small, like on the pictures. But compared to other rooms in DC is the price and the location (next to the metro station and walking distance from columbia heights) very good. I can recommend living there for a few months! John is a very considerable host. He always replied to the messages and fixed problems very quickly.
The walls in the flat are thin and you hear the noises from your flatmates. When I stayed there, it wasn't a very social flat life, everybody was busy with their own life. But all in all I had a good time there!