I've been twice! Once on my SV1000S and once in a BMW 335I
I had WAY more fun in the car as it didn't trigger my "you're going to die sensor" as much.
It was fun on the bike but I would rather do a track day where there isn't any trees to hit, cliffs to fall off of, or rock faces to run into.
To me the Cherohala Skyway is WAY better than the Dragon.
I don't have to many pics of it on this computer.