Product review (5 stars): Be sure to defrost for a full 24 hrs!
Followed the reviews on Google on how to fix the ice build-up on the bottom of my freezer, and this was the perfect fit. Be sure to COMPLETELY defrost your fridge/freezer, or else the ice will begin building up again. After I installed this I thought a few hours of no power and cleaning out the ice build-up would be enough, but the ice came back a couple of weeks later. Frustrated that I may not have actually fixed the fridge properly, I decided to try a full 24 hour defrost with the doors all open. It has been months since I did that second defrost, and the ice has yet to return!