I LOVE Cirque du Soleil and have seen MANY.... so I definitely feel that I can compare them. This is one of my favorites! That's saying a lot. It's a down to basics type of Cirque. It doesn't have the crazy moving platform (Ka) or a huge pool (O), but it's so magnificent in the individual acts. My favorite part of this show is when the two strong guys get on the small rounded rotating platform. It's completely amazing how strong, flexible, and basically superhuman they are!
I have seen this show twice, most recently in April '09. We had great seats (back of the first section). I would recommend not sitting too close. I think the American mindset is 'closer is better' but if you get too close, you spend a lot of time looking straight up and in some instances you are looking behind you. Sit at the back of the first section from the stage, it's perfect.
In addition... Please please please don't bring your small children to this. We had a kid (about 2 years old) in front of us and behind us. One was ok and the other was scared to DEATH and screamed and had to leave numerous times. I feel like Cirque should have a minimum age, but hey it's money.
I would HIGHLY recommend this show if you are in Las Vegas. IF you are deciding between this show and another, I would suggest this one. It's got the core of what Cirque is and because it is an older show you can usually get good seats.