OK so far!
I purchased a 597 extractor in July 2018 for my spare parts box and just recently installed it. After reading the two reviews regarding early failures, I was concerned that I would also have an early failure. However, it installed normally and has been reliable so far. Not sure if there have been any recent changes to the manufacture of this part, but my 2018 extractor has not had a failure like the two previous reviews.

