"An impossibly cheap e-scooter with performance claims that defy its bargain-basement price tag."
The '350W Motor' offers nominal power for flat ground. It will struggle significantly with inclines and heavier riders, and the '19 MPH' top speed is a best-case scenario for a very light person on a full battery.
This scooter is for someone whose budget is absolute, for very short trips on smooth pavement. It should be viewed as a disposable item for occasional use, where the alternative is walking.
Daily commuters, anyone weighing over 180 lbs, or riders in areas with hills or imperfect roads should avoid this. If safety and a service life beyond one season are priorities, your budget must increase.