I saw a guy riding one of those here. Looked really stable as he was cruising along and with the big tire looked like you could go over rougher terrain than a regular hover board
One of guys on my street has one it had LED lights very bright both rear and Front and it moves he was doing some spins on the road with it at night looks good but myself I will stick to the two wheels and up.
How quickly can it stop from 15mph?
What's it like to stand on and control for half-an-hour?
I dont want to be a downer, I do think it would be better than a common hoverboard!
but neither is really for me, I like sitting down straddling a long seat, or perching on a saddle. I'm a biker for life.