The BUNKHOUSE was a great place to stay during my visit to San Francisco. The building is only one block away from the Union Square and within short walking distance from the Powell Street Station. The room and the amenities were exactly as shown and described. Although there are no hairdryers in the rooms, you can borrow one from the reception.
The receptionists were friendly and helpful.
Please note that this room is at the rear of the building and faces the neighboring building's ventilation pipe, which creates a somewhat loud noise (not louder than the traffic noise coming from the front, though).