Product review (5 stars): Perfect and easy.
I was nervous at first because obviously most of us don't go around installing ice makers all the time.  I also debated on the official whirlpool product versus the knock-off.  After reading pros and cons, I decided to go with the official product and glad I did so.  It might have been more, but I know this is the product that is supposed to go with our refrigerator.

The old one slid out easily and the new one slid in easy.  We were initially nervous because ice cubes didn't pop out in seconds, but within two hours, voila there were ice cubes.  Hooray!  Definitely recommend.