Their lifetime warranty used to be taken extremely seriously, and I really don't know what lifetime they were referring to. I had an old external frame pack that was my grandfather's back when my father was a Boy Scout. That pack outlived its buyer, and I was still using at Philmont where they had the same model as a museum piece. One of the zippers broke, and the back mesh was disintegrating, and pretty much as a joke we made a warranty claim. They honored that, circa 2012 or so.
Their schoolbags were pretty great in the 2000s, too. Withstood some serious abuse, though their zippers were notably on the decline. But that was covered by warranty, so it was fine. By the mid 2010's, they were in full decline, and that's about when I stopped recommending their stuff.