Product review (5 stars): Good result for KitchenAid KUDS01...
I ordered on Sunday and received the part on Tuesday without paying expedited shipping.

This part replaced the original 8564542 control board in the door.  The "Clean" button on my KitchenAid flashed 7 times repeatedly.  I could not start a cycle, but the pump would run when I pushed the "Cancel" button.  Six Torx screws to access the control board in the top part of the door.  It looked fine, but there was a faint burnt-electrical smell which I later confirmed was from a black hole on the bottom side of the board.  This was a 5 minute job once the part arrived.  I saw some "refurbished" parts for less money, but the price and shipping performance from Luna was a great value for me.