I have Vertigo, even at that it took me say 3 hours to assemble the kit, no problem.
My recycle trash can is overflowing for a few weeks however, ha ha. There are no instructions on how to install the must have optional flag. There is small plug in a tube right next to the saftey tip over wheels on the back. It takes a alen wrench to install it. The metal bracket is not used. Maybe it would be used it the flag were used on a bicycle? In haste I purchased a seat belt at $31. You don't want it.
If it is going to tip over, I want to stand up and stop it. You can also stand up and lift the front over "lips" in the surface, if you do have a running start at them.
I wish the GO GO Ultra X has some springs, or rubber tires. But, the kids in the neighborhood like it the way it is! I should have thought about buying one of these units years ago. Finding someone to drive you around is a real pain.