The hotel we stayed at was another story. With nearly 500 in attendance three working elevators for 17 floors were not enough. On the last day one of the elevators got stuck fully loaded and it took an hour to get them out. You had to pay in order to have wireless internet in the room, no complimentary breakfast, and the ice machine was always empty.
The hotel that the convention used three years ago is under renovation and when they have the next retreat three years from now they'll most likely go back to the other one. I always thought this was one of the finest hotels in the city, but I'm not impressed right now.