Completely satified: liners fit exactly--better than any mat, even the customizable ones--and serve as a reservoir collecting mud, melting snow, water, sand, pine needles, i.e., everything that would otherwise destroy the carpet in short order. Pop in securely, pop out fairly easily, and can be hosed off at a coin-operated car wash. Seemed expensive--and, compared to competitors, they are--but the others now seem (very nearly) a waste of money. Shop around; you'll see. In this case, the hype isn't hype.