My expectations were met when I went here. To even offer an aquarium in the middle of a hotel is awesome on its own. Definitely a must see when you are staying at the Mandalay bay. Some of these reviewers are seriously lame. Some dude was actually complaining how long he had to walk down the strip to reach Mandalay Bay, are you serious? That's not the aquariums fault that your cheaping out of a taxi cab ride in Vegas. Some people were actually comparing this place to the Long Beach or other large scale aquariums .