A word of caution to all speed freaks out there: the Onewheel+ is so much sketchier at high speed than the v1.
I'm sure everyone that's tried has hit the crazy pushback as they approach 20mph, and it got to the point where I thought the tail was going to start dragging. Then came the scariest part: it completely disengaged the motor and all of a sudden all of the effort I'd been putting into fighting the pushback was turned against me as I instantly started tipping forward. I was sure I was going to be licking asphalt, but somehow I managed to catch myself and get on the brakes.
I am never doing that again. Ever.
EDIT: I was not going downhill.