In the past, I had a phone with wireless charging, but mostly found it a pain. Putting it down slightly in the wrong position often caused the phone to not charge overnight, and the charging was just too damn slow in the morning when I realized that it hadn't charged overnight.

I had a very similar experience with the Nexus 4, but that was a known bad implementation and I wouldn't go for a phone without wireless charging like my Nexus 5 and my LG G4 with a sticker that enables wireless charging.

My Nexus 7 also has wireless charging which has been great because the USB port is broken, so I have no other way of charging. The lack of moving parts in wireless charging does mean less chance of breaking.

Wouldn't that have depended on that charger the placement and number of coils it had?

Palm really nailed wireless charging with the Pre. Magnets ensured it lined up correctly. And allowed it to be mounted on a stand at a great viewing angle.

Too bad about Palm...

It could be possible to add on via the modular slide out thing though

True. By the way, the Galaxy S7 is supposed to have a metal case but it still has wireless charging too so the engineering seems to be feasible.

In my experience the distance between the pad and charger receiver made a big difference, thus putting on a thick case made charging difficult to proceed quickly.