I stayed four nights on a recent trip to San Francisco. The hotel is in a perfect location, steps away from a transit hub, streetcar route and cable car starting point. It is also walkable to many places. I stayed in an efficiency room with shared bath. The room was tiny, but very comfortable for one person if you're only staying a few days. It had everything I needed, even an iron and ironing board! I never had to wait for washroom facilities and found everything to be impeccably clean. Some complained about noise but I never found that to be a problem. Staff are nice, very helpful. And they provide a great cup of coffee in the morning! Extremely pleased with my stay at the Mosser.