Man, it was awesome! I mean, yeah, at first it was a little scary. Realizing you're not touching the ground when you're supposed to be is kind of freaky, and even after I started to get the hang of it there was the concern that maybe it would stop working suddenly and I'd have an extremely unpleasant meeting with the ground.
After that, though? It was fun as hell. Picture the freedom of getting your first car, amped up to about a million.