Very good product! Has convinced me. I have my phone dropped several times (on stairs), yet it is functioning properly. The black hard plastic corners make it very stable. Only if it falls from approximately 1m to the side of the display, then the display been canceled the back cover of the phone out (which is, however, the mobile Creator). As one might the green silicone sleeve adjust a little, so that also keeps the display slightly, but otherwise perfect. The buttons are perfect and have the same pressure point, as if it had no shell. In addition, it does not slide around, even if it is placed on a 45 ° inclined plate.