I think they are kinda cool but right now are just for the rich and powerful and fortunate and are therefore all mambee pambee stupid upper class toys. People look so stupid riding those things, its tough too look cool in that standing position slightly leaning forward.
In the future when modders get their hands on these things and they become cheaper and more accessible I'm sure things will change and they'll become cool. I doubt they will change the world like the creator hopes just because the oil companies and auto makers won't allow it, and they're too rich right now.
Could be cool later, right now I think they're kinda silly, like AIBOs or something.