Here's my two cents, that I want to submit before reading the other replies:
I spend a lot of time on this forum, and all the descriptions of the RESULTS of rooting sound great! Beautiful screens and wonderful themes and so on. It's very tempting...
HOWEVER!! My Galaxy Note II cost $250...and would cost a lot to replace. And all the descriptions of HOW to root sound complicated, and all of them carry warnings about what could go wrong. If there was some way that was easy (and not just DESCRIBED as easy by whoever came up with it)....AND if there were an easy way to recover the phone if anything did go wrong, then I'd definitely try it.
But as it stands now, it seems like a complicated process where things could go wrong at every step (this may not be true, but it SEEMS like it from the descriptions), so I can't risk my Note. It's not only expensive, but, as it's configured now, it does everything I want. It's great with videos, games, Internet, and yes, even calls! It's literally everything I want in a phone/tablet hybrid.