How long do JBJ chillers last? Looking at used ones for sale.

I need a chiller and found a used 1/4 Arctica chiller for cheap. I asked how long he’s had it and if it would need any repairs, the seller said he’s probably had it for 15 years but it “only got used for a few summers” and works like it should.

Has anyone ever had one of these for this long or are they known to last like this?