Anyone have one? Experiences?

And, how does it compare to the surface?

I inherited a surface a few weeks ago, and I really like the pen interface and OneNote, but I don't like Windows. And I'm not sold on Windows OS for a tablet.
The OS for the iPad is near perfect, and if the pen works well, I'm game.

I don't mind having both a laptop and a tablet, so the surface (with full blown windows) is overkill, for me.
No Apple stores really close to me, so I haven't had a chance to go and try one out.