The immediate spill test is interesting, noting the protective seat cushion covers, but they are only removing granular material sitting on the surface or an immediate spill. What I would want to see they did not show. How are the front seat cushions holding up and how easily can the gradual dirt/color transfer clean up after the weight and pressure of the back of pants, etc., grinding into the surface over time? In my wife's last MB, the seat back and even door trim arm rest took on a reddish hue....sure enough she had bought a new red leather jacket and worn it in the car for quite a while...never could get the red out from the tan leather on the seat or vinyl inserts on the doors again.