We visited San Francisco for only two short days and spent most of our time in the city, but from what we were able to experience in the room was exceptional.
The bed is very comfy and the decor was beautiful. The hosts were very quick to answer any questions that I had and made significant effort to make our trip as easy as possible. We were given an early check-in and the parking was very easy (either outside of the apartment or across the street in a parking lot).
All I would make a note of is that it is a small apartment that works for couples or parties of two or less, but I think anyone looking at this place should already see that.
I would highly recommend anyone who is visiting the area stay at this place to have a short trip into the city without dealing with traffic/parking.