A scooter like this is just as stable as any bicycle, and by making the head tube angle more laid back, more trail* can be built in to make it even more stable. Those damn Razor scooters and the like have less than 1/2 of it one way, none if you flip the bars backwards. Way too twitchy for me. But if you can ride a bicycle, a scooter like mine has a learning curve of virtually nil.
It's pretty amazing to ride. I can corner far harder on it than I would think about trying on my bicycle because instead of low-siding, I can just throw my foot (or both feet) down to catch a slide. Plus I think the standing position allows better shock absorbtion for better grip overall.
And no, I don't have a computer on it. The magnet came with the wheel, but I don't really want to know how slow I'm going.
*The distance the contact center with the ground follows the pivot axis.
I need to get a new rear tire for it. It's the oddest thing I've ever seen. If I inflate it to anything over the 40 psi rating on the sidewall, it leaks. But once it's down to 40, it stops! It has held air for 5 days at that pressure now. I'm having trouble finding a good narrow 12" tire that is not an all-terrain tread though.
The front tire is holding up impressively well considering how scary the sidewalls look. For what have to be at least 15 year old tires, they grip pretty well too.