Well I can FOR SURE tell you that it takes a while to get used to it! I got mine in December and it took me a good week to get semi-comfortable with it, lol. Now its much better. One thing I did was to put the mouse that comes with it away. Far away, and use the pen SOLELY, no matter how frustrated I got. Once I felt comfy with it, I scrapped using it, and that was all it took.
One thing I do love is that is has an "eraser" on the other end of the pen. When your scrapping, and you want to erase something, you can just flip the pen over and erase what you want (being in that layer of course). It makes it a touch quicker than clicking the erase tool.