"It requires a certain sort of hand-eye approach to drawing that some artists find very hard to master. Best to try with a cheaper model first (or even a borrowed one if you can) You can always save for the better models if you need to."

I'd agree with this except, what's the alternative.  You have to learn to draw by feel with a tablet, and that's not easy, but in any case it's far better than a mouse and I know of nothing better.