We stayed for 2 nights over the weekend.
The location is perfect and in a walk distance from the Gaslamp district, so its close to bars and restaurants and most of the city attractions.
The host was very welcoming, the studio room itself is very clean, decorated very nice and most important very quiet. There is also a nice kitchenette with all kind of goodies Kathi left for us, which was great.
Overall, we like it very much! we had really good time in the city and relaxing time at the Studio. We would probably come back on our next visit to SD.