Good location, but......
Pro's:
 - Parc 55 is located in the center of San Francisco near shops, transport, museum.
 - Easy transport by Bart (Bay Area Rapid Transit) trains from the airport to Powell station (costs $8,25 pp). Hotel is 100 meter from this station
Con's:
 - checking in took us almost two hours: there was a huge line so we waited in the bar.
 - we had booked a club room (almost $ 400 a night) and asked specifically for a room with a beautiful view (the club rooms are situated in the top levels). We got a room on the 30th floor but with no bay view but a view on another hotel (Ellis street).
 - we had to remind the guy during checking in, that we had booked a club room and therefore had access to the club lounge (breakfast and some snacks sun-thu).
 - a $ 400 room and still have to pay for wifi ($ 14,95 a day)! During our 3 1/2 week stay in the USA almost every hotel we stayed in had free wifi (and were a lot cheaper than $ 400 a night!)
 - breakfast is served between 7:00 - 10:00. On Monday, people who arrived at 9:30 were told that the lounge had no food! The guests were send down with a coupon but came back telling that downstairs there was no food either!