If you're looking for something in particular on a certain floor (a machine, table games, the exit), pay attention to where you are. this is a boat an the level that you get on and off can change with the water level. Also, in case this doesn't go without saying. Only problem is, all the good machines are on the top floors.
The top floors are saturated with cigarette smoke but the bottom floor is smoke free. You can also order drinks directly from the machine's touch screen (when they work right). Drink service at the machines and tables is few and far between, so you're better off just going up to the fountains and getting your own if you don't mind losing your seat. It's no Las Vegas but Horseshoe Southern Indiana is a fun place to go play if you've got some extra money you want to get rid of.