If what you want is a clean, centrally located room to drop your things and go explore San Francisco, this is the right choice. Perfect place if you want to check out Haight Ashbury, the Castro and the Mission by foot.
The room is very small--just a bed and a stool for your suitcase--and can get drafty in the cold SF weather. But a powerful space heater solves that problem. The house is gorgeous and very tastefully furnished and renovated and while there's no kitchen, there's a washer, a drier and bikes.
Josh is very responsive via email.