The one thing that bugs me about the UGDO is that it doesn't work unless the key is in the number 2 position.
With my wife's Explorer (Eddie Bauer), the UGDO is standard and it operates my garage door regardless of whether the key is in the ignition or not.
Perhaps I'm just used to the Eddie Bauer, but I can think of a bunch of reasons why it would be more convenient to have the UGDO operate anytime.
Anyway, I'm done complaining. At least I've got the UGDO, which I much prefer than not having one at all.