Product review (5 stars): Recommend this if you have frequent electrical surges or failures
Update: we've lived with this for about a year now and we live in the lightning capital of the U.S.  There have been numerous strikes in the neighborhood, multiple power failures (twice/month minimum), and there have been zero problems with our smart fridge now that we have this thing protecting it.  The previous refrigerator had failed multiple times in the past ten years.  The negative reviews (especially the ones with misspellings) stating "not U.L." are truly mystifying.  The packaging is very clearly listed UL.  I think for the money spent it's been a very worthwhile "investment".

Original: I love how this "times out" when there is a power failure.  It prevents the fridge from turning immediately back on when power is restored.  This is a saving grace for those brief off/on cycles that seem to happen here more frequently than I'm accustomed to after having lived out west.  Because we did not have one of these installed on our previous refrigerator, the electronics and compressor eventually failed from the (fairly frequent) lightning-caused electrical-surge/power-failure/power-restoration cycles.  This device has proven to be a very inexpensive insurance for our new fridge.