Great Location
If you are looking for a nice holiday visit to San Francisco, this is the place to stay. Ask for the Tower and get a room overlooking the ice rink in Union Square. If not you may end up in the older part of the hotel that is more victorian and has smaller rooms but is nice if that is what you like. 
The SF trolley stops right out front
Macys and all major stores are within walking distance. The Cheesecake factory is atop Macys and is also worth a stop after a day of shopping.