Plastic corners at the top that hold the unit in the cover are too fragile. The first (small corner) you can understand: there is not much to hold, it's inevitable if you want an opening for the headphone jack and buttons for volume. So he broke in less than 2 months. The leather is cut to clean, and say "damage" ...
But then why the other corner (top right, just above the camera) he breaks a month? It is not excusable for a product of this price.
Now, when the cover is open, just a little flick to set the phone slides up and eventually falls.