I enjoyed my stay and would definitely book again.
As noted in other reviews, it is a downstairs unit that is below the hosts' home. Despite the entrance being at street level, I felt safe and it was very quiet. The bed was very comfortable.
Great location- just a few blocks from Mount Sutro Open Space Reserve, so if you enjoy hiking, you'll be in the right place. It is a steep mile-long descent on foot to get to the restaurants & shops in Inner Sunset, so it's important to keep that in mind if you plan to walk. I loved being so close to the Muni & other amenities and yet coming 'home' to a safe, quiet place for the night.