Product review (4 stars): Very Good Except for Skinny Back Wheels
Old rack started rusting out, so I ordered this rack as a replacement. The new rack works OK as is with the exception that the back wheels are too narrow. This causes one side or the other of the rack to slip of off the track and become "stuck". The more dishes in the rack, the heavier the rack is and the more "stuck" it becomes. Then it is a game of lifting the rack back onto the track without causing the other side to slip off. Otherwise you end up going back and forth.

Fortunately I kept all of the the wheels from the old rack. The old wheels were much wider than the skinny new wheels. I replaced the skinny new back wheels with wide old wheels. This solved the problem for me. You may also try flexing the back wheel holders outward so that they cannot fall off of the track. So only a four star rating because the rack should have come with wider back wheels but I was able to overcome the deficiency.