Man that sucks, I did hear stories of people having issues with the kitkat update. Sounds horrible. I'm still on 4.3 with Verizon and it's still as buttery smooth as the day I got it.
U seem to be lucky pal.
I was truly amazed with note 3.....until the lag issues and battery drainage drove me nuts.
Must give apple full marks to have hardware and software so well fine tuned, that the experience is Mind blowing.
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i was in the same boat as you. tried all kinds of smartphones - treo, blackjack, blackberry, motorola q, nexus, samsung. once i got hold of an iPhone - i never looked back.
East or west...yo iPhone is the best
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Many including myself had nothing but lag issues with the note 3 especially after the kitkat update. Sold it for a HTC m8 now and my gosh this phone is fast , and so clean. No junk hardly in the software. Way better experience.
Htc sense ui is much more optimised than touchwiz