I do feel that all this phone needs is something to keep the screen from hitting anything and the camera lens and that a TPU case would be all it needs. I love how the thing looks out of a case, but the aluminum is just a bit too slick and I don't want to risk marring my pretty new phone, durable or not.
The cases I have are nice,the front side edges are raised enough to place the phone face-down on a flat surface.
However,the backside is a different story:
The power button is recessed,but,the case is not thick enough to keep the camera lens off a flat surface, pretty much flush, give or take a .5mm.
You may want to look elsewhere if the latter is a concern.......