Product review (1 stars): All four wheels broke off within a couple months of each other!
I've had my KitchenAid dishwasher for a little over a  year and now all four upper rack adjuster rollers have broken within a couple months of each other.  I went online today to order replacements parts, but after seeing how much two adjuster assemblies will cost me, and then reading all the reviews saying the replacement parts will just break like the original parts did, I'm not going to waste my money.  This is obviously a horrible design and like others here have said, I will never buy another KitchenAid product either (I have a matching KitchenAid stove that has been giving me trouble as well).  In the mean time, I'll be gluing the wheels back on and hoping for the best.