All the best for your platformer game!
I wish I had the time (and Skype or something) to sit down and chat with you, but I definitely don't at the moment.
It is definitely worth buying. The price has increased a few times since it first became available. I only wish I had bought it earlier! Though I did pay more than some for my copy, I do not regret a cent.
So far I have won back more than I've spent on the license.
Infact, I initially used the free version to create a game for a small competition and used a portion of the prize money to buy the standard license.
So far I find C2 comes with many logically-good improvements and redesigns when compared to CC. It is still missing a lot of features which could hinder you in creating a DirectX standard graphical game or atleast make the effect you're going for harder to achieve.