I bought a QTS-3 sometime in the late 90’s, and it worked flawlessly until a month or so ago, and it would still be running if it weren’t for a mistake on my part. Quincy=longevity.I bought my first compressor at age 18. It was the QTS-3. It was recommended by my Snap-on dealer at the time. I’m a firm believer in buying things once, and being made in the good ole USA! I’ve never been let down by a Quincy, and don’t forsee ever being.