I enjoyed my stay at The Mosser. The hotel was in the center of everything and was super close to the Powell St. BART station. Yes, the room was small, but that wasn't a problem. There was room around the bed and enough space for two people to sleep and stop off to change. It was very clean and the bathroom had lovely tiles. I liked that the sink was outside the bathroom, even! It's an old building, so some things (like the grout), might not look fresh, but it was tidy and well-appointed and charming. I'll definitely stay at The Mosser again when I visit San Francisco.