Very nice, quiet four-bedroom (five, if you count the sofa-bed in the living room) in a quiet neighborhood.
Nice neighborhood restaurants and coffee shops. Parking really is available nearby, if you have been wise enough to bring a vehicle that is not very long. WiFi is very fast.
Close to the ocean, so the neighborhood can be foggier than more inland locations.
Note that one the layout is a little unusual. Three of the bedrooms have doors into the hallway, but the fourth bedroom can only be reached by going through either of two other bedrooms. That can work for families or other intimates, but might be a bit awkward for some parties.
I would certainly return to this flat if I again host a large group in San Francisco.