It's quite stress free at Sarah's. I only stayed one night before travelling onwards. You are given keys so you can come and go as you please. The room is basic but comfortable with a little view of the nice back garden.
Lots of bars/restaurants locally. Friendly locality. A little out of central London. A little convoluted from airports but easier travelling back into central London and main stations. Found it easily from Sarah's directions. About 5 mins walk from Gypsy Hill station. Thanks Sarah!