We were warmly welcomed in Sam and Andrea's flat and a had a lovely stay (4 nights). They were both not around for most of the time, but had left us with sufficient breakfast on the first morning! I can greatly recommend you staying at their's, as they will go out of their way to make you feel at home.
The location is perfect to set off and discover London, starting by some of the local cafés and pubs Kentish Town has to offer.