I came to SF only to attend an evening music event at the nearby SFSU (which is within walking distance and the way is not too steep!). I stayed that single night and left early the next morning. Both the place and the hosts Victor and Rosie were awesome.
Compared with an hotel, it was an experience of far superior quality and ease: when you arrive you just get in, and when you leave you just get out; the shower, bed, toiletries, and etc. were all better.
Additionally, I was carrying absurd amounts of luggage and Victor and Rosie acceded to let me drop it off before check in hour, and even to actually use the place, as there were no guests. I appreciate that beyond words.
If you're here to tour the city it is also in a convenient location.