Zemfira's place is the perhaps at the one of the best locations in San Francisco. Close to public transport (BART & MUNI), restaurants, cafés, laundromats, supermarkets, etc.
The check-in/out process is automated, and hence flexible.
Have to mention that Zemfira was very accommodating and understanding of an unfortunate last minute change to my trip, and I was pleasantly surprised by her generosity and goodwill.
Will recommend this place without any reservations!