I have used it now but in the bathtub.
Anyone who has read books in the bath, has an idea. The book will be wet with steam and each time when turning one has to dry the hand again - annoying.
Not anymore!
Here the tops down by my priorities:
+ Water resistance
+ Touch screen operation unrestricted
+ Legibility is no different from the original state without shell and is therefore in no way affect
Neutral points
o handiness: the otherwise very handy carrying strap can be somewhat disturbing (can be removed only with great difficulty). Who they did not need in principle, this can remove yes.
o Although necessary for water resistance but time-consuming and cumbersome: the show or unpack.
Bad points:
No, if necessary, after long-term use
Strong buy recommendation and read in the tub makes fun :-)