I'm on my second pair. I was told by the Costco guys that each vehicle (and tire size) has ratings that impact the recommended tire pressure for driving. My first set was a custom ordered set (not picked up) at a big discount that were narrower than my present ones (recommended size). I strongly suggest watching the alignment very closely if you want any distance out of them along with five K rotation.
I do quite a bit of varying quality national forest roads and I got like 42K out of my first ones and they were toast. The dealership failed to tighten something at the first alignment with the second set I have now and I went 4K before realizing it and lost 5/32's off of one before I fixed it. Not sure what to do about that. Going to the dealer for alignments is no longer going to happen.
OH, but in terms of performance, they are awesome, particularly in the winter. And they will let you know on a wet road or slushy snow when it is time to get new ones. I promise.