When coming from GE I ran into the same issue. I accidentally flashed the 4.1 and it got stuck there. I just downloaded the right ruu and the ota update and it went just fine.
Re: Skipping Kit Kat update for now and heres why. Anyone else?
One of the reasons I have updated and came from GE was that I can use both ISIS and Google Wallet out of the box now, without a ton of tweeking.