We arrived at 1, too early for normal checkin at 3pm, but the receptionist told us our room would be available at 2pm. It wasn't ready until 3pm.
We didn't notice with the TV on in the room, but there was a loud noise coming from the roof above our room, a noise that sounded like a large electric motor running. Unable to sleep in the middle of the night, I went to reception to ask that we be moved to a more quiet room. Initially the receptionist told me there were no empty rooms, that the hotel was full. I told her I would reflect this in my opinion on Expedia. Miraculously she found a quiet room available! When an employee was helping us move from our VIP room, 324, he listened to the noise and told us there was a big motor, for the climate control on the roof above our room.