Expected better from a Westin
Location: Great proximity to downtown SF. Walking distance to the shops and located near a Muni/Bart stop to get you around other parts of the city. 
Room: Stayed on a high floor in a king-sized room. Great view of the Bay Bridge and the city. The size of the room was standard (if not a bit smaller) than I expected. It really just fit a king-size bed. Trying to fit a roller bed would shrink the room two-fold. Amenities were good, room was clean & comfortable. Just wished the standard room was larger in square footage. 
Service: Great staff - willing to assist. 
Parking: Very difficult to find parking in downtown SF, so take advantage of the valet parking at the hotel, but at a rate of $48/night (in & out privileges). 
Overall: Probably would check out other hotels in the area, since this one didn't quite have the "WOW" factor I was looking for.