Product review (5 stars): Works great, even if you want to customize it for a Whirlpool fridge.
Works just as expected for my Whirlpool fridge in the garage, as it runs now when cold outside and keeps freezer items frozen even though our garage has dropped to the 30s due to the single temps outside lately.  Couldn't be more pleased.  Note, since this is made to fit a Frigidaire product, you have to just be careful when installing if you have a different brand to ensure it can stick inside the temperate module area and not interfere with any of the other wires.  I installed this by watching a YouTube video and it really only took me about 20 mins to complete the job afterwards.