Had them on my 05' dodge dually. Great for towing when it was dry. In the wet , moist, snow, mud, gravel, etc, ANYTHING was better. You can find some cheap tires or spend a fortune. The tires do last forever because of how hard the compound is. Just be careful if it's wet. You won't believe how little traction you have.
I went back to 17's after a year of running them.