It is unacceptable that it has electric brakes, the most important thing. Yes, you won't fall from braking too hard and you won't lose control, but 9 out of 10 times, in an emergency, I have to brake with my foot either on the rear wheel or on the road and God help me. Otherwise, you have to anticipate much earlier the obstacles that will arise in order to brake early. And the second most important negative, it has zero shock absorption. Maybe it's because the rear wheel is a tubeless tire and the front one loses air relatively quickly. I don't expect it to behave like a scooter with suspensions, but if you ride it on a sidewalk or on a road with cobblestones, many times you feel like your brain or teeth are rattling for those who are sensitive. The xiaomi scooter, despite not having suspensions, never did that to me.
The positives with this scooter are its speed, its autonomy, and the fact that it turns off by itself in idleness.