Product review (5 stars): Working great so far.
It saved my $2000 fridge.  My fridge was giving off wails of agony and was pretty much dying.  I was getting prepared to buy a new fridge when I researched on the net and found this.  I thought I'd give it a try and 9 months later, the fridge is still going strong.  Not bad for a $10 device.

Installation wasn't too bad for anyone with basic skills with tools and ability to follow directions.  If exposed wires freak you out, you should get someone else to install it, though.