Externally, to say that I feel processes the envelope as well. I did not detect a yielding of the seams. The leather comes across as high and makes an elegant impression. The often to be ascertained problem with sliding covers that open ends, so far I could not notice.
Optical so a really good gig!
Of the keys of the on / off switch and the mute switch in the shell can be operated, which is sufficient in my opinion! The small holes at the bottom, in order to hear the ringing tone better do their job perfectly!
With regard to the protection against a fall, I can not say much because I am not yet fallen so far.
All in all, I am therefore very pleased with the shell!