Unfortunately, the plastic of the lower sleeve is a little "cheap". This does not mean, that looks bad it but rips the plastic cover in the corners very fast or a splinter from. I'm not talking about it, the rush for this, etc ... happened, but just by tensions of the shell, for example, if one mobile phone to clean (it was the shell itself or the phone) away.
Thus, this cover is a nice design object, unfortunately only for a few months.