I am very unimpressed.  As delivered the drawers did not work.  The slides were fouling the mounting screws.  It looks like the paint on the drawer slides was the problem.  Drilling out the screw holes in the slides with a countersink bit solved the fouling but should not have been necessary.

With the fix in place the drawers work without fouling but the overall quality is still poor.  I wouldn't have bought them if I'd seen them in a showroom, and wouldn't recommend them to anyone.