Cool scooter
My wife purchased this scooter for our kids (22 months and up) for Christmas 2007, and it's been a real hit, particularly with our toddler son.
Assembly was quick; there were only the body, the back wheels, and the front wheel column/steering mechanism to put together. The bolt attaching the steering wheel must be tightened pretty snuggly; using the supplied tool took a bit of arm strength - a socket wrench is recommended by the instruction manual and probably would have been easier to use.
The scooter does work as advertised; on a smooth, level surface turning the steering wheel does provide some small locomotion in the direction the steering is pointed while the wheel is being turned. However, my kids tend to kick along with their feet for better speed and directional control, and the ball bearings in the wheels allow each kick to propel them pretty far.
My wife has limited it to indoor use only because our concrete patio wears down on the plastic wheels, so I can't comment on its performance outdoors, but on our hardwood floors it's quite stable even at the highest speeds my son can make it go.