It really is a nice "aquarium". I am not a fan of keeping animals in captivity so they can be hawked at, or have children (or worse, adults) hitting the tank to "get the fishes to look at them", however, this is pretty impressive nonetheless.
For starters, it's free. That's always cool. They have a sign posted where they let you know the times of the feedings. It is pretty cool to watch them feeding the fish.
The tank has some really beautiful fish. I kinda get mesmorized watching them.
It's not a place where you can spend the day with kids, it IS in a casino, but if you live close or are passing through Vegas, it's a cool spot to hang for a bit.