Product review (1 stars): Standing Water, told to clean filter daily: are you kidding? BUY A BOSCH!
I am just submitting a review to concur with the other two readers: dead fish is about the right smell I smell, too!  There is standing water in the bottom of the dishwasher.  I got off the phone with Miele last week and was told that this is by design.  This water is left after a cycle and is forced out in the first few seconds of your next load's cycle, and does not enter the current wash cycle.  Unfortunately, that doesn't help the fact that the standing water takes on a terrible stench when the dishwasher is not running between loads.  The phone rep told me that I best remove and clean the drain filter DAILY. Are you kidding me?  This means opening up the bottom of the dishwasher, digging around the stagnant water and rinsing the filter.  This is the best help to be offered?  A terrible design flaw.

Honestly, I dread opening up the door to load dishes, for fear that I will be blown away by the stench if I haven't done a load within 24 hours.  I too have had to really clean the dishes before I put them in the dishwasher to try to reduce the volume of stench-producing possibilities (not unlike Miele's advice to clean the filter every day).  A real disappointment since I was told that one should not have to do this with the great Miele dishwashers: "let them do the work."  As the other reviewer commented, this is the top of the line dishwasher?  In my 40 plus years, I have never had this kind of experience with any dishwasher.  I surely haven't been told to muck around the innards of my dw to cut down on offensive odors.  Buy a BOSCH.  Once we are out of debt for buying this one, I will.