We had an excellent stay at Bernat's place.
The location was excellent, in the middle of everything we wanted to see in SF & public transport was easy to use (bus 5). A couple of blocks to Divisadero St with shops, restaurants, take-aways etc.
The studio itself was perfect - clean & cosy, obviously excellent bath & shower, very comfortable, use of utensils, microwave etc.
Communication from Bernat was great, very detailed instructions.
We'd definitely stay again on a trip to SF!