I'm here for a conference so this place is super busy and everyone seems overworked. Perhaps this is why the pizza isn't that great? The pizza seemed over salty, the sauce wasn't that flavorful, and the crust was a bit too tough. For a New York style pizza place, it just doesn't do it for me. They do the sbaro thing and reheat your pizza after you order, maybe they need to heat it a bit longer too.
If you're hungry near the Mandalay Bay conference center do yourself a favor and have something else instead.