I have one, and rarely use it. You have to program it, using the CH Control Manager Program; which is not the simplest of software to master. Right now, my MFD is occupying a place on my simpit, but isn't functional, because I still have not figured out how to program it again. I had it working at one time, but hadn't used it.
I had tried using some glow-in-the-dark paper as a background template, but don't bother with that, as it doesn't work good. It's a shame that CH Products didn't include some type of lighting for this panel. I bought a cheap USB powered light so I can see the buttons.
NC