This is probably great if you need a family-friendly activity on the Vegas strip. It is probably not as much fun if you a sober or drunk and child-free adult looking for something to do.
The sharks actually only take up one room - the rest of the exhibit shows other exotic terrestrial and aquatic animals. The coolest thing they had were the piranhas and tropical fish. Less exciting were the crocodile, python, and other similar animals you'd find at the zoo.