I picked up a used Galaxy S4. So far, I love it. I'm coming over from an iPhone 4. What a difference ! Anyway, its currently on 4.2.2. Ive been reading that people are having issues with 4.3. This is making me not want to upgrade. I keep getting the notification, and would like to make it stop if possible. Unless of course, you guys think I should go ahead with the upgrade ??