The scales arrived in a risky packaging (soft packet with one layer of bubble wrap over the retail box), the box was deformed, but its contents survived. I'm really satisfied with the purchase. Firstly, the scales are made relatively well (the build quality isn't perfect, but much better than that of typical scales from AliExpress); they do look good and are pleasant to handle, the bottom half of the body is made from a soft elastomer, they are convincingly heavy (about 220g), the display with its uniform orange backlight is excellent, the transparent cover seats in its place firmly. Secondly, they are relatively precise, linear, and stable. Of course, professional laboratory scales are better, but these are quite decent for this price and definitely better than a typical AliExpress device. All the photos are made with M1 class weights after calibration with a 100g M1 class weight.
Do not forget to calibrate your scales before use since gravitation in China is weaker than at higher latitudes. Unlike some other models, this device does not allow you to choose a calibration weight, it always requires 100 grams. A 100g calibration weight was included in the package (despite the descriptions says it's not included); this weight (the left 100g on the photos) is of average quality, but it does its job as it should.