The room is basic, but it is large and clean with a private shower. You do have to go up three or four flights of narrow stairs, so it might be a bit challenging if you have a large suitcase.
It was raining the last night I was there, and water was dripping from the ceiling - I informed the hosts and presumably they will fix that.
Some noise from the trains passing by.
Communication with the hosts was very good.
The location is very convenient - right outside London Bridge station.