Chris is the perfect host and his "nest" offer all the comfort for your stay in London. Communication is accurate, the flat is easy to access from both Tooting overground and Colliers wood underground. The area is very residential and quiet. Do not worry about the proximity to the railway, you do not usually hear the infrequent trains as the flat is accurately soundproofed and insulated.
I strongly recommend booking this place if you are in London.