As the two previous posters have pointed out I would disregard the "benefit" of an upgrade. The upgrade to the best available room benefit is the most misleading statement I have ever encountered in print. I don't consider a room on the concierge floor an upgrade, its the same #$&@!%? room with a bathrobe hanging in the closet. As insignificant as these rooms are they are still impossible to come by (I usually find myself on the 2nd floor in the next to the elevators even though my profile state "high floor" and I always put "as far away from elevators as possible, thanks." in the comment box). Good luck.