Was always enthusiastic about the design. Unfortunately, I have the case not as often as I should have cleaned. If you are not careful, dust comes from the back of the phone and the plastic casing. We the dust is not removed quickly arise Druckspuren in aluminum iPhone. In my case, it was downright small patches in which the anodic coating of aluminum was scraped and stuck to the plastic of the case. The two pieces of glass got quirks.
Conclusion is that perhaps through daily cleaning of the cases could have been avoided, and in this case it would be a super cover the damage. I am, however, very disappointed with this product and now have a neat scratched iPhone. Something like this should test a manufacturers during development and prevent constructive, rather than have legal protection, and to sell it anyway.
