In principle, therefore a nice idea.
In this case, there are in my view two weaknesses:
1. Durability
The case looks at the beginning of gorgeous and is confusingly similar to leather. After a period of intensive use, but it turns out that the quality is not yet as good as the first bill. Small scraps from the surface leaves just starting so and let's look at the gray fabric underground to. That does not look very nice, and certainly not more noble. For me, it may not be after a month use (your pocket, backpack, sometimes together with keys).
2. Functionality
It fit as shown exactly two cards in credit card format in, nothing else! If it really wants to be a hybrid between wallet and phone case, since sometimes even have smaller bills and at least a third card can be accommodated. Otherwise you won this case the wallet Punk spare nothing.
So overall nice to look at and good forth from the idea. But the implementation does not convince me high and functional.
Only 2 out of 5 stars.