I have seen many of the shows by Cirque du Soleil in Vegas. This one is by far the best. It is also I think the oldest.
The only critique I really have about this show is that in the over 10 years that hit has been running... They have not updated it at all.
I went to see it again just last week and it was as good as I remembered... But exactly as I remembered. The concept is awesome and they should update the show keeping the water thing but adding new modern elements to it.