Well, if you're anything like me, you will be extremely overwhelmed by the Cirque show. My wife, sister-in-law and I were on the edge of our seats for almost the entirety of the show. When it was over, we were pretty exhausted (clapping, "ooh-ing and ahh-ing"). We also talked about it all the way back to the room and spent a good amount of time talking about it when we got there.
If you're vacationing and have or will be visiting the parks, you might want to save your energy (for Pleasure Island) for another day. 10:30 is pretty late. But, the show might jack your adrenaline up enough to dance the night away.
Good luck!
Ian