Many of your queries already have answers and examples.
Maybe it would hep you more if you just downloaded the free version and spent a few weeks making prototypes of the mechanics you are needing. That way, you can get direct assistance when you get stuck or lose your way.
You will then have a much greater understanding of the pros and cons of C2 and be able to evaluate it's usefulness to you much easier, and all you've lost is a little time.
If you decide it's not for you, then you've lost nothing and can move on to a different engine.
In the end, asking lots of questions just gets you subjective answers. You won't learn anything unless you get your hands dirty and just get stuck in.