It was good, I'm glad we got the tickets from Tickets Tonight, rather than paying full price. I liked it. I didn't love it. I have the attention span of a gnat, and even they couldn't keep me on track.
If you are Penn and Teller fans, go. If you don't do musicals and all the other stuff, but still want to see a show in vegas.. go.
if -- you really feel like this is something that will make your life complete - go. IF not, eh. go check out a niteclub or something.