With a DTS Qi charger wireless charging works well, the casing must not be removed.
Very pleasant I never find, when you operate your Nexus with his finger on an edge to come (there's no one there).
The grained surface not like it so much, the smooth surface of my very similar case for the old Nexus 7 I find attractive.
Although the surface of the pocket is grained, fingerprints are emerging very clearly, here I have a rather dry skin, even on your fingers.
Even with the Qi charger Philips DLP7210B / 10 the shell must not be removed.