If you are traveling to SF w an automobile then this is the place to stay. Most hotels will charge you at least $75 a day parking. Here it is free. The parking lot is monitored 24/7 and is covered and near the office and elevator.
The front desk staff are very friendly and offer to hold luggage prior to and after check in and out which is great.
Neighborhood is probably the nicest and safest part of SF too and within walking distance to the wharf, piers, Coit Tower, Chinatown, and the cable cars.