Completed a 3-night stay here in August 2011. The hotel is very nice, definitely worthy of 4* in my opinion, and we enjoyed our stay. I can't comment on the amenities very much, but the room and bathroom were quite luxurious and clean. The finishes are classy. Very nice floor-to-ceiling windows in the room. Wireless internet costs like $12/day or so, which is somewhat annoying. We didn't have a car but I assume parking is astronomical, but that's par for the course in a downtown area such as SF's Financial District. There is a bar & lounge in the lobby and a restaurant on the 3rd floor. All the staff I interacted with were helpful and friendly, except for one bad experience with a very rude woman on the phone when I called to request a king sized bed (we booked by bidding on Priceline) a few days beforehand. She immediately realized that my reservation was through Priceline and began to explain very impatiently to me how Priceline works (I'm well aware of how it works, thank you). She seemed legitimately irritated that I should have the audacity to request a king sized bed as a Priceline customer. However, upon actual arrival at the hotel, no mention of Priceline was made by any of the staff and we weren't treated with anything but courtesy. One word of caution: the area around this hotel (Financial District on Priceline) is primarily a business area, which means that it is mostly deserted on the weekends. We had trouble finding a bakery or coffee shop to have breakfast at and had to settle for Starbuck's. During the week there are many more options open and more people around. For tourists, Union Square and the Ferry building are certainly walkable from here, but Fisherman's Wharf is probably not. The Embarcadero Center is across the street but again, it was pretty much a ghost town on Saturday and Sunday. However, there are plentiful transit options near the hotel (BART, Muni Metro, cable car, street car).
