The materials and assemblies are very good, it's nice and reassuring. Furthermore the outer material seems repellent which would easily withstand moderate rain.
Some might find it too small to replace the usual case or bag-in-hand and be aware that you can not put A4: it goes wider, but we can not close the case).
For me, the most annoying point is the lack of access to the front pocket due to the rigidity and adjusted cutting materials. That is the counterpoint of the benefits are the compactness and the solidity of this case.
In the end it is not fatal ...