I am admittedly a bit picky about phone

Because my device is so tall and the charging receptor is on the bottom half, my device does hang off the top side quite a bit, but the magnetic click does seem to keep it in position securely regardless.

Just a bit tricky to get your phones in exactly the right spot.

You will hear an audible bit and the unit will light on the corner to show charging is starting

Since you can't put multiple overlapping coils in PMA devices like Qi charging devices, placing your phone on this pad can be a bit tricky.

The pad is a bit tricky to use and if the phone is not placed precisely in the correct spot, one may wake up in the morning with a phone that has less charge on the battery than when it was placed on the mat the night before.

But i think I've got the hang of it, my wife still struggles a bit with her s7

Cost of the case was only $25 via AT&T (sorry Amazon).