After reading everyone's reviews on their iPhone 5, I am more and more surprised that people don't like how light and thin It is. I remember using one of those Nokia brick type phones, and wishing for something like this. It's incredible how thin it really is. So far, no problems at all. Wifi is working exactly the same as my 4S. Same signal, except LTE. The only differences are the charger and the screen size. And it's pretty fast with switching apps as well. Overall, I love it. And I really am confused on why so many do not.