Very convenient and easy to set. I put it when I need it, instead of the shell leather Apple is the top. No condensation, the touchscreen works perfectly well, perhaps with a little lack of sensitivity compared to the iPhone screen. Ditto for the Home button, except that the Touch ID works well. Only downside for me (but you can not have everything) is that it helps to increase the size of the iPhone so considerable, and fits so well in a jacket pocket.
