I have a rhino in my tuck and wont have anything else. Its a bit softer so things dont slide around, but still very durable. I have not managed to harm it in any way.
My dad has a line-x in his and it went bad when it was new. It started bubbling in certain places all over the bed. Took it back to line-x and they "repaired" it by cutting out the bubbles and re-shooting it. They said it didnt mix right or something. Dad was too nice about it, had it been my new truck they would have bought me a bed and started over with rhino...