Brian's place was my first "private room" experience on Airbnb and I was very happy with my stay. The room was comfortable and private, while the shared spaces were very stylish and clean. The location is perfect for getting around the city, and while central, the room is still fairly quiet (you can hear the Muni train in the distance, but it didn't bother me and I'm a really light sleeper). Tiko is an awesome cat too.