The compilation of the content may not have meaning for everyone - but that's why you look just beforehand whether the respective content for the buyer / recipient has meaning or if everything is already there.
Yes, sometimes you have just a bit behind the door, but is that really a criticism? If behind every door something expensive / Great would, we would talk about very different prices. And as long as full at the end of the bit set is ...
The Wera calendar are classic - you have little doors that fold / tear you up and takes the content. This is solved more elegantly with Wiha, there is the content in boxing, which also results in four different designs.
My conclusion: Great calendar with high-quality content, reasonably priced.