For cheap to free, I would run a set.
Like I said, for the right price, they are good.
My only thing, I have been spoiled by running Boggers. And I have NEVER seen, owned, driven, any other tire that came close to those for pure traction!
Of course I have PLENTY of power and a light CJ5. Those tires were crazy in the mud, dirt, sand. They just sucked bad on loose sidehills. They get a little 'puckering' at times !!
Still, the ground hawgs and gumbo mudders were decent tires (about the best until Swampers really hit the market). And are still an ok tire. The thing is, they never evolved with the sport.
So if you like them, use em. Just don't spend too much.