How do the aftermarket liners (ZipFit, Intuition, BootDoc) compare to new stock heat-molded liners for ski boots?

Specifically in terms of price, fit, performance, warmth and longevity.

I’ve heard some of the newer models feel “custom-enough” to the point it’s not worth splurging on cork but not sure how long they hold up before getting packed out / how quickly you need to replace.