The Tank is such a great experience. Granted if you're at the main lower pool - you need to get their early to claim a spot if you want a free lounge chair or are with big groups. The cost of the couch areas is very reasonable and if your party is over 21 there is the hideout. But this review is purely for the main area.
Fun water slide, it's a quick ride through a roller coaster of tubes that run through the aquarium with sharks and what I believe are a school of tuna. But don't blink or you'll miss it. grab a water proof camera and snap some pics. It's a blast.
Poolside service was reasonable. It's a great spot that rivals many of the strip hotels at more affordable prices.
However the pool deck is a lawsuit waiting to happen. Ambulances came once for a lady with a concussion from slipping on the wet pavement during the 3 hours I was there. There were also two other people wipe out. And those weren't even the drunk tards or kids running (which somehow those people seemed to stay up right). I slipped a few times but caught myself. It's the material that they used. If you're wearing sandals all the time, you'll be fine. but that's not always pratical (like when riding down the water slide).