In my view, this case is too small to properly protect the Xperia M2 It suits perfectly to the device, it is very attractive and well maintenance, but its design is too light, too fine.
I will not make the experience of dropping my camera to one meter high (eg) or the height of a table, because I will fear being damaged. The plastic is rather hard enough and therefore not amortized or little impact.
I had a Xperia J before and the shell that protected him was far better for the device that the latter ..
If I found another shell that protects better I would not hesitate one second in order.