The location was absolutely perfect - access to public transport, local cafes, parks and the beach. The place had virtually everything you'd need, even a fan for those of us who absolutely have to have a fan while sleeping.
My only real complaint is a minor one: no serrated bread knife! Otherwise, if you want a cosy well-priced location to explore San Francisco in one of the best parts of the city (in my opinion), this is a fantastic place for a couple or single person. If you're used to tight spaces, it also sleeps a third comfortably. Both the bed and the sofa bed were very comfortable (according to my teenage son who slept on the sofa bed).
Last thought: if you like to eat at home, this place works well for a couple, but is tight for any more than that. Fortunately you're in San Fran and there's an endless plethora of options for eating out!