It looks neat, nothing staggers or rattles, plastic parts and a metal case are made perfectly. There is an instruction in 2022. By the way, the Chinese in the instructions urge you not to remove the compressor from the case, I tried to get it but it is held tightly on rubber clips that also serve as the legs of the case. Checked, shakes well.
To complement my review, I've included some photos that capture the atmosphere and mood of the place.