We stayed for almost a week and it was lovely: morning jog in Clapham Common followed by coffee in one of the many cafe options. Then off for some meetings and sightseeing. Lots of dinner options within walking distance, and even an artsy movie theater. Stayed cool on the hottest days, which is when we were there.
Centrally located, the flat is very quiet, overlooks a lovely garden in a cul de sac. Recommend highly.