Got to mess with one tonight. A buddy of mine bought two and stopped by the house on his way home. It's pretty cool. The battery seems to charge pretty quick. While it doesn't seem to adjustable, it handles decent. It definitely be cool to move the kitchen table up and set up a track using straws or something. One thing I see it working for would be those guys that bring their 5-7 year olds to the track with em, would make for a neat class.