Material is very thin and has many manufacturing defects in the finish.  Looks like parts of it were touched up by hand after manufacturing.  Instructions have some errors in referring to incorrect part number.  The wooden dowels are loose in their holes - the holes are too large for them to have any significant structural benefit.  If the back panel is not perfectly positioned then some of the screws used to attach it will poke through the sides of the panels into which they are being fastened.