I'm getting used to it. Drawing tools are important. It's only when I got the stylus that I started getting better.
Difficult to rate on a scale... It's hard at first, especially without palm rejection and pressure sensitivity. I'd say I'm at a 4 or something. I can get to what I want. The undo button is a pleasure!
Hopefully in a couple years, I'll upgrade to the latest Ipad for even more control!