I have not bought tires for my truck yet. Will need too once the roads clear up and it's out of hibernating.
However I know of at least a half of a dozen people that are running them on anything from jeeps, tahoes, 1500's, 2500's, plow trucks and I've heard no complaints from them so far. My fleet supervisor runs them on his personal truck and he racks up some miles but really likes them.
Only thing holding me back on them is I'm pretty partial to buying American made products when possible. So I'll probably end up with new nittos.