good location, location,location.
Location is the key to this Hotel- well situated for the BART (straight to and from the airport, easily) and cable car to Fisherman's wharf etc. The hotel itself is what i would describe as a business hotel, no frills, efficient without being personable service - they're clearly mainly dealing with one night bookings, but this is an observation, not a complaint. Rooms are a wee bit tired, but nothing to complain about; probably due a modernisation facelift, but rooms are clean and functional, very comfortable beds. 
In summary a typical business four star, very well located for business and tourism.
Tip- walk 3 blocks to Union square to SEARS restaurant for breakfast- great!