"A disposable-class scooter with specs that defy physics at a price that reflects its quality."
The '21-mile range' is an ideal-condition fantasy. Expect about 10-14 miles of real-world travel before the 280.8Wh battery is depleted, and less if you are heavy or face any inclines.
This scooter's only valid use case is for a lightweight person needing an extremely cheap device for a very short, flat, last-mile commute (under 5 miles). The price is the sole feature, purchased with the full understanding that it is a disposable item with a short lifespan.
Anyone weighing over 180 lbs, living in an area with hills, or needing to travel more than 10 miles round-trip should not consider this. Buyers seeking a reliable daily vehicle will be quickly disappointed by the anemic performance and inevitable failures.