Mirror Mirror on the ...

NEGATIVE
# Power button so hard covered, that he is only to operate with considerable pressure
# Cover moves on the left edge of the display, as it there is simply too narrow (strip). At each switching on and off, since
one to wg. the power button cover must hold the phone firmly, you move around it inadvertently
# The back cut-outs around the camera lens and LIGHTNING are much too large (optical idiotic and schutzbeeinträchtigend)

CONCLUSION
If I had a different matching protective sleeve, I would send them back by return mail.
It remains here even more questionable, what one is oriented in product design or quality which you need to provide.

The protective cover I can not recommend because of handling defects absolutely.
That would be worth two stars. But since I for one have no desire to be "beta testers" for half-baked products or as a customer now remain to me the effort to reclaim and to arrange for a return, it is hereby precisely, Terrapin, 1 star.