We're from Australia travelling the U.S.A. for 6 weeks (lots of luggage in tow & keen to be in the thick of the action)so these remarks are really only relevant if you're in the same boat.
The casita is in a lovely quiet neighbourhood, a long way from downtown. So if walking is your mode of transport I wouldn't recommend this casita. That said, it's only a $15 cab ride to Rainey St.
It truely is a little casita, so may I suggest leaving large suitcases at home.
If you're sensitive to light & are after a sleep in, pack an eye mask.
The casita is very clean, the bed comfortable, Chris was very quick to respond & extremely helpful & the shower has good water pressure. Although it didn't suit our purposes, when all is said & done it was safe & secure & was a lovely quiet place to rest our heads.