OK - the shipment was really fast and the assembly pretty easy. The quality of an office chair doesn't reveal immediately because the true test is continued use. That said it seems to be a good build - the mesh is comfortable the padded drop front on the seat doesn't dig into the legs and the (movable) lumbar support is a plus. Good value for the dollar.
The date of manufacture for this chair is 01Nov2021. So it was already old before I assembled it. After assembly the chair though admittedly comfortable was locked in the lowest position and the height adjustment was nonfunctional. Manufacturer promises to send replacement part in a month or so.
The gas cylinder gradually failed completely. From occasionally to consistently the seat would drop to lowest position due to faulty gas cylinder. Also mesh seating stretches out and no longer provides support. This all happened within the first year.