Oh, you know fresh, I only saw it once: Delirium. My mom had seen other Cirque shows and loved them, but she hated Delirium too. I'm pretty shamelessly artsy (no talents myself but adore the arts) and all it was to me was people walking around the stage really slowly and pensively (including one dude on stilts while another dude gazed up at him meaningfully) and a lot of flashing light.
Just being ONE of the Cirque shows doesn't necessarily make it good.
As I said, mom said other shows were wonderful. I probably would have loved them.
sidenote for humor: a friend told another friend I was going to see Surf Du Souffle. This friend isn't very bright.