I have an iPhone SE that I bought a year ago and I love it. It's fast, small, has very good battery life and runs iOS 11 and all its features perfectly well. I'm a big fan of the saying: "If it ain't broke, don't fix it". This is particularly relevant now, when the Safari 12 update removed all my extensions which I have been relying on for years, without warning or even an option to say "no thanks". I have had iPhones and iPod Touches and iPads completely ruined by an iOS update in the past and I have learnt from my mistakes: once you update, not even God himself can help you downgrade. Your only option is to sell your phone or live with the performance issues for the rest of your device's life. So my question is: compared to iOS 11, how is iOS 12 on the iPhone SE? I'm specifically interested in things like animations, keyboard responsiveness, scrolling, opening apps, and general responsiveness. If all of this is as good or better than iOS 11, then I see no reason to avoid updating. But if it's any worse, then I'm sticking with iOS 11 for good.