Welcome, Airith!

I'm a very big CC3 user (I've been using CC software for about 10 years now). If you have any questions about CC3 to help you in your purchase decision, please feel free to ask away.

As for the learning curve, I think it has been greatly reduced over the years as new versions of the software have been released, but since it is a CAD-based program and not a drawing program like Photoshop, there are some differences in the way you work. But yes, doing the tutorial in the little booklet that comes with it is key to understanding the fundamentals.