The wife and I ( DM and PM) are GE enrolled, and we got to try it at Logan the other day. A long lecture on how just because the green light came on this time, that doesn't mean it will come on next time etc. And one of you might be OK and the other denied etc.
But what a pleasure... shoes on, belts on, wallet in pocket, computer in bag, and the wife even kept her light jacket on through the metal detector.