I got my onewheel about a month ago and got about 50 miles on so far (I need an android device).
Practiced in my yard for about 20 mins and was good to go.
Today I had to turn in my leased vehicle so I rode the onewheel 8 miles back. Luckily 6 miles into it with a low battery I stopped at a fast food place to eat and charge it.
This thing is by far one of my best purchases, so fun to ride. Starting and stopping is simple now (that was my biggest worry).
I'm in the Salt Lake City area btw.