Just got back from 3 days at Ballys. The rooms are adequate but generally dated decor. This is the second time we have been offered the jacuzzi room. They are larger but they also smell like sewage. I tried running water in the tub thinking the trap was dry, didn't help. If you are offered that room type, check it before you move in, you will smell it as soon as you go through the door.
In addition don't take a room on the Flamingo Rd. side of the building. Police/fire sirens will keep you up. Construction noise from former O'Sheas will probably be there for the next couple years.