I stayed on the 18th floor, serviced by the 17+ elevator bank. Even though there are 8 elevators, the wait (to go up or down) was long, and the crowds were big also. To make things worse, people (with lots of young children) were monopolizing elevator space--they would bring on two swimming pools (4 foot in diameter). Baby carriages didn't make the situation any better either.
The casino (gambling area) was not heavily used.