Very good value! Silicone is a little stiff, I had a little trouble to put the shell but once it is placed it does not move! Only downside for the Xperia Arc S, the top button on the shell is not too opposite the top of the phone button (the button that is used to lock the screen), so you have to press hard to do ... I think a small hole in the shell at the location of the original button. Otherwise I love the hull!