I went to the Quidam in NYC a couple years ago. It was so good, I rollerbladed back down to battery park city a week later just to sit outside and listen to the music. The one thing I would tell anyone who hasn't seen it is to get the conventional image of a circus (clowns, animals, etc...) out of your head, cuz that's not what cirque du soleil is about.
Like someone said, every seat in the house is pretty good. Just make sure the view isn't blocked. I jumped on dralion (the cirque du soleil show coming this spring) as soon as the tickets went on sale and managed to get front row center of the second section back. Great seats, I'm so excited.
doofy, don't forget that Dralion is in NJ this year, and not NYC. I don't know why, but they moved the show to the liberty state park which is across the holland tunnel in jersey city. On top of that they jacked the prices up like crazy...which makes no sense to me.
Go to the show. I'm sure it'll be worth the money.