Product review (1 stars): Do not buy this
I would give this machine less than one star if that were allowed.  We have had a very poor experience with this dishwasher over the past year+ of ownership.  I do not recommend that you buy it.  There are serious design and materials flaws with the upper rack system.  The wheels, racks, and latches keep breaking after normal use.  The entire assembly jams when you push it in after loading and take it out to unload.  More than once it has collapsed and fallen off while fully loaded (which is a problem especially with glass).  This is after I bought a full set of replacement parts (about $70 including shipping) and installed them to make the top rack work again.  I'm heading out today to buy a new dishwasher.  It isn't worth buying a new set of parts because I know the top rack system will break again in a few months most.  In any event, the website that sells the parts is sold out (wonder why!).

While we've had no other problems with the dishwasher, the problem with the top rack nonetheless requires replacement of the whole unit well before the end of its lifespan.  Very frustrating.

I can't believe that any company could produce a product with such a serious design flaw.  The racking support system should be made of stainless steel, not cheap plastic.  Kitchenaid should recall this product.  Needless to say, I won't be looking to buy a new dishwasher from Kitchenaid.