I've been running the Mopar 2" lift now for 9,000 miles, and same as the OP, I have C rated KO2's. Every time I go off road or over rough roads, I just smile at the way this thing feels. It will be on the Rimrocker Saturday and in Moab next Sunday through the following Thursday, so I'll report back after all of that, but off-road here in the dirt/mud/sand and few rocks of Indiana, I could not be happier. I'm pretty pleased with the KO2's, as well. I thought they'd really suck compared to the KM2's I had on my JK, but they are better in sand and are not that much worse in Indiana mud. Now I know mud varies a lot, so the jury is still a bit out, but they still did much better than expected and moved the Jeep through it without much drama. On road, they are outstanding in rain, snow, slush, and in the dry. I know the big complaint is how they grab and throw rocks, but I'm sure that will get a little better as they wear. It seems to be the price paid for good snow traction, anyway.
Overall, I'm thrilled with the Mopar lift. Note: I did have excessive bow in the driver side front spring, although it never rubbed the bump stop. My dealer put the updated pad on it under warranty and that gave some additional room. I wouldn't trade that bow for a stiffer ride, so I'm 100% happy. They work so well with the tune on the Fox shocks, too. It is a great package.