There is a place in Innovations, can't tell you the exact building but check when you get there. We did it but I confuse the buildings, I'll try to figure that out for you.
The line takes a little while, you go into a small theater to watch a movie clip and get the 10 cent tour of how to operate it. Then you step out and each get a chance to try it. Essentially, step on, find your balance and demonstrate you have a feel for the speed, start & stop. Then you make one short loop, around 25 ft or so, and back to start. It's very cool
You'll end up adding the WS Tour to your wish list for the next trip. We did - will be doing it this Sept.
(PS - must be <250 lbs - I'm sure the man on the one next to me was fibbing on that point)