This was definitively a great and spotlessly clean studio - the photos don't lie! As the previous, very positive reviews have already drawn a very accurate picture, I'd like to add just two points:

First, the apartment is pretty close to hip Divisadero Street (a number of cool places located on this street, for instance San Franpsycho, are featured in a NY Times slide show on NoPa, see NY Times travel section on SFO).

Second, you can use a washing machine/dryer (fees were 1 USD/0.75 USD, respectively, detergent was complimentary) which comes in quite handy if you are on a longer trip.

I highly recommend this studio!