It's a cute mini-bike, won't have much range with a 36V 6Ah battery; however, if you're using it to get around after a train or bus ride, it would be fairly compact. Do expect the price to be about 50% higher due to the upcoming tariff on ebikes. Wonder about parts availability and repairs.
Also note, one reason the price is so low is they are not using high grade Li cells, just generic Chinese 18650 which are the more risky ones and have fewer charge cycles than Sony, Panasonic, LG or Samsung cells. If they were using a brand name cell, it would've been mentioned in the description. In addition, they do not mention including shipping costs with the bike, so I would think there would be approx. another $150 freight.