This case is really something special. Unlike silicone or plastic this is far more stable. Cover and base are screwed together (screwdriver included), thereby the mobile phone is well protected. The build quality is top notch, no sharp edges and corners. The thread for the screws are clean and mainly just drilled. The aluminum is very good anodized, etc. without spot and without shadows Become really impressive! Also, the hand feeling is unique. Easy to hold, anodized aluminum with a touch of cool metal - so it must be. But a star deduction must nevertheless be noted: The reception when traveling is suffering! Even in the domestic wireless reception is impaired, unfortunately noticeable. But what clearly lies at the material and not on design ;-) For those who want something special and I can cope with a small flaw this shell only recommend!