I just got my 4.4 OTA update today and I'm not impressed. My phone seems abit more laggy but its not horrible and the most annoying thing is when I hit the Home button it shows me all my home screens then I have to hit it again to get back to the screen I was previously on. Also my phone runs very hot now way hotter than with 4.3 JB. I tried to decline the update but it just had me pick a time later in the day when it would either update on its own or ask me again. Not happy with KK.