I have one on my 09, but I have not had a chance to really put it to the test yet...however, camping season is just around the corner! So far, it has been under a truxedo cover and not exposed to the outside elements. It does seem a bit slicker than the Rhino's I have had in my past two superduties but I do like the overall look. Like I said, once camping season arrives and I start loading rubbermaid containers, grills, firewood, dutch ovens, etc., I will see how it holds up. It would be interesting to note how the liner will be covered under warranty for repairs that might be needed.