Product review (4 stars): The parts went together well and are far more sturdy than the original all plastic parts
The parts went together well and are far more sturdy than the original all plastic parts.  My complaint was the instructions.  Because of the poor print quality, it was difficult to make sense of several of the pictures, so it  took me a while to figure out exactly how the pieces went together.  Once I did, things went fast.  The upper rack is now stable and rolls easily.