Geoff's place perfectly fit my needs for my stay in San Francisco. As advertised, this is the perfect place to leave your things and rest your head at the end of a busy day. As others mentioned, the room is pretty small/minimal and the ceilings are low (not a problem for me as I'm short), but if you are here to get out and explore the city rather than stay inside, this place does the trick. The bed is full sized and very comfortable, can technically sleep 2, but is probably most comfortable for one person. I will note that the walls seem thin and you can hear noise from outside the space. The one night I came back early, I could hear the neighbors(?) in a long heated argument. But again, if you don't plan on spending most your time hanging out in the BnB, this shouldn't be an issue.
Geoff himself was incredibly responsive and immediately helped address any questions or concerns that came up (like a bit of confusion with the lock when I initially checked in--Geoff came right out and helped me with the code). And his recommendations, both in the listing itself and in our conversation, were made a great difference in planning my trip. Geoff's place is pretty centrally located in the Mission and there's plenty to do--shops, food, bars--right around the corner on Valencia street, which is easily walkable. I also spent a bunch of time at Dolores Park and The Castro which are very accessible by foot.