Conclusion after not even 3 months:
Case protects your phone very good - quality is unfortunately very bad. After a few weeks, the thin plastic is (as a thin strip) canceled on the Micro SD card slot (though I used this slot not) - now scarce 2.5 months later, a plan is in the plastic frame at the bottom left. I have to drop the envelope with neither equipment nor she has been subjected to special stress. Possibly I just caught only a "Monday envelope". Exchange on Amazon was launched - I hope I have better luck with the next envelope.