Not sure if something like this ever happened to anyone else but I had to trash my M-Edge Go cover after about 6-7 months. The glue started to bleed through on the inside, leaving a sticky residue anytime you tried to hold it open as it was most prominent around the inside bend. That was $35 down the drain. Suppose I might have been able to return it but didn't really look into it, as I didn't quite like the case from the beginning. Was always stiff and uncomfortable to hold.
Opted to go the cheap route and bought this $13
mCover. Wish I had done so from the beginning. Works just fine, has a nice feel and was dirt cheap. Not sure or care much if it's real leather but it looks and seems decent to me. I'll never spend over $20 on a case again.