I stayed on 4.3 just because I have a nexus 7(2012) with kitkat and its not how it was on jelly bean, now its sometimes laggy, buggy there, quick office wasn't working, Bluetooth for some devices neither
So yeah, my moto g on 4.3 is fast, smoothly,haven't experience any lag and that's why I'm keeping it that way until a more stable update from kitkat or even 4.5 comes out
Extra: (my girlfriend bought a nexus 7 too, and hers came with 4.4, and its incredible faster than mine, I guess its because I need to factory reset mine?)
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