Staying at Harriet's place was a nice experience. All requirements are there. We spent our week as if we were at our own house. Interior walls are too thin so two noisy couples may not feel comfortable. Neighbourhood is quiet and nice and you can find markets very close by. Location wise bus stop is very near, but to reach central London you have to take a bus which takes half an hour. As tourists we weren't out at rush hours so it wasn't a big problem. I may easily choose to stay there again.