I was able to update my Note 3 before it got pulled, but I have been noticing a few things while messing around with my phone. First, I noticed that none of the pre-installed VZW apps updated like they did with the S4. I also noticed that I can no longer resize while using multi window. One plus I did see was that it freed up .33 gigs of RAM, which is kind of a big deal. I now have a maximum of 2.71 gigs, up from the original 2.38. And Google Wallet actually works now.
I was able to finish downloading it at work but wasn't able to install because i don't have administrative privileges on my work computer, i made a copy of the file just incase something happened and right when i got home found out they pulled it, so i used odin to upgrade with the official copy i backed up and it worked fine keeping my stuff intact. Wondering if they found a bug or something which might be why they pulled it.
Mine running well so far. hard to tell the difference between this version and 4.3. only issue I've had so far is the Visual Voice Mail app tells me that basic visual voice mail the app throws a reminder in the notification area after every reboot. Annoying but not horrible. but I could tell immediately that it was running faster and smoother.
KitKat is now available OTA. If you don't see the popup display showing up, you can go to your settings and press software update and it should be there.