Excellent finish but very delicate

The look and feel of this case is fantastic. Real leather and high attention to the details.
I use it since a couple of months and I found two major problems:
1) real leather Means so that slight colors are very delicate. The side and back of the case has already turned black. In fact I just ordered the version in black leather.
2) the small hook That keeps the flap closed does not keep its tightness in time. It works quietly but it is CLEARLY loosening.