Great idea if a bit pricey.... looks like it comes with a charging dongle you connect up to the controller which allows it to charge wirelessly by just placing the controller on the mat.

saves wear and tear on the controller port.
If placed correctly on the mat ensures controllers always charged and ready to use
can be safely operated while drunk or in the dark
looks badass

dongle has to stay connected on controller
only supports up to 2 devices, needs more dongles for more controllers
it's 40 quid
needs another mains plug

available here :