I have stayed in Fran's spare room for the past few weeks and I can highly recommend it. The room itself is wonderful -- spacious, clean, comfortable and cozy. It is private, as it has its own bathroom and is located on the top floor. Fran and her family are wonderful hosts - very friendly and accommodating. It is in Zone 3, but the walk to Tooting Bec station is quick and the Northern Line is convenient. Also, the neighborhood itself is great - plenty of different restaurants, shops, etc. Again, highly recommend!