Unfortunately I cannot leave good feedback. I've had this case for less than 8 months with very light use. In that time 3 of the 4 corners have cracked off in the manner seen in the photos. It's a great looking case but there is clearly some manufacturing issues here.
I spent 30 minutes with Amazon customer service and a supervisor and have only been told over and over since it's outside the return window they will do nothing.
I have not dropped this nor does it get thrown around or even put in a purse everyday. It sits on a bedside table and I pick it up to read. That's it. That amount of usage should not mean it cracks with normal wear and tear.
Long story short, buy something else. This one is poorly built and if you are unlucky to catch it after 2 months after purchase, they will do nothing to fix it.