We (my partner, son, and I) spent a few days in this lovely home, and enjoyed our stay very much. Alex and Otto were really helpful and responsive, and the house is a hidden gem in an area where you might not expect this. The only slight downside to be prepared for are the single pane windows, which don't filter the noise so much. But no worries, the bedrooms are to the backside of the house. Frankly speaking, I would not want to replace them for the modern big windows, which destroy the original architecture (as on the opposite street side)!
Public transport is easy with busses stopping right at the door, and the Overground and Sothern services within close walking distance. Dining close by is a bit difficult. We liked the pub accross the road best, or you walk a bit (which was not an attractive option this year, as the rain finally fulfilled all of London's promises).
We highly recommend this place, and look forward to come back!