I have seen quite a few on different trucks around town - mostly on 94-01 Dodge Rams. Seem to be good, wear well from what people tell me that have them. From my experience and IMHO, they don't look like they would do well on ice though . .. but very few, if any, aggressive AT tires do.
I have two reviews on Sport Kings. I had a pair on a 88 s15 but they didn't last 25k-30k miles, I think playing around caused it. Had excellent traction though. Dad has a pair on a 86 F150 they have been on there for 10 years and never had a flat. I think they have about 20-25k with alot of tread left. But their older with different tread design. Those tires will probably still be on there when the truck rust apart, so another 5 years or so. Probably break every one of the lugs trying to remove those rims.