Product review (5 stars): Make sure you Defrost and verify the drain is clear.
I received this item yesterday, after reading lots of reviews and watching lots of YouTube videos I bought it.  I have a whirlpool gold I think I purchased in 2013, the installation took a couple of hours.  I think the most important thing to do is make sure you get all the ice (melted) and verify the drain is clear.  I sprayed water to verify the drain was clear.

OK it has been a couple of weeks and I still have not seen any water at the bottom of my freezer.  I would say this fixed my problem.