Product review (5 stars): 5 years, still going....
Im guessing I got one of the good ones.  Undamaged from shipping and cooled in the garage from the get-go.  Weve had it since 2013 and we live in Houston, so I really didn't wasn't sure it would cool as low as I needed it to.  It does, though, and it was a good investment.  Not sure what happened with others, but mine works great.  On occasion, Ive had to defrost but thats in cooler weather.