Quality unfortunately this time poorly

Was delighted with BookBook. In particular, from the Case for 4s. But also for the Mackbook. All very well made and durable. The shell of the 4S was after two years still so good that I could sell it.
And now this poor quality. Back ultra thin leather including cardboard. Leather dissolves after a short time. The seams go on. The shell falls almost apart. Can I recommend no BookBook fan - unfortunately. Two points, because the functionality is given, at least for a few months. (Text refers to the brown variant, which I have. Could be black but at the same)