You're not getting a high quality ebike for $1200. I had a $600 e-scooter (Segway ES4) and by the time I hit 500+ miles on it the screws were falling off, the external battery connection was corroding, and the bottom floorboard light connection had broken.

I just checked and the Ninebot Max is $949 on Segway's website and that's got a smaller battery than most ebikes. And I'd be willing to be that that scooter would also break down just like mine.