First thing to remember / take note of - NV residents gets a $3 discount. Not a major discount but a nice one.
I'm a sucker for any place I can see animals - especially when it is a learning oriented facility and not one teaching them to jump through hoops (literally) for profit.
Enclosures were a good size and the animals were really close which is fairly expected at a facility this size. As for the complaints about animals being asleep -- they are giant cats! They sleep... FAR more hours per day than they are out wandering around. It's a wild animal that is not there strictly to amuse you. Enjoy them.. sleeping or otherwise.
The dolphin area was nice. I didn't watch any of their training demos but it was hilarious watching them rough house with each other in the pool towards the back of the exhibits.
Price was a tad steep for the size of the facility but in the middle of Vegas chaos it was nice to take a few minutes away and see some gorgeous big cats and dolphins.