I've been to Cirque de Soleil and in my opinion, it's not worth it to spend your money on the seats front and centre. There's a lot of stuff happening all over the stage and you actually get a better view by sitting further back. Sitting too close will hurt your neck when the acrobats are up in the air and cause you to miss a lot of the action. When you're sitting further back, you can actually take in what's going on around you.
We sat in Category 1 (Section 204, row BB) and if we go next time, I would probably opt to sit further back to Category 2 so I can see the show better.