I had a wonderfull stay at Margaret's. I have been nicely welcomed (by her and her son Joseph) in her lovely house, wich is in a really quiet neibourghood. The location is so convenient, at only 15 minutes walk (there are also buses if you don't wanna walk or reach other places directy) from Clapham junction station (from you can reach Victoria or Waterloo stations in a 5 minutes ride). The house itself is really convenient and you can really have your privacy respected. The bedroom is cuter than the picture shows and I slept wonderfully in a very confortable bed.
I do recomand Margaret's place without any doubt.