..and for one reason alone. Go into Messages, hit the home button then swipe to next screen.... does nothing. I can rub my screen like im trying to give it a good time and absolutely no response at all. 5S... had it for less than a week. Unresponsive like a 4 yr old Android phone, and no exaggeration. Just setup from new and its still doing it. I seriously don't get this. My last venture into world of Apple was an iPhone 5 on launch. iOS 7 came out and I had a similar experience, it's happened again. Going to try and downgrade to 7.12 but I dislike the fact they will shoehorn people into 8 soon enough. Very disappointed.