I have a set of them on some 15x8 rims on my 4runner and have had really good luck with them. I got them pretty much worn down to the wear bars. I grooved all of them and my only traction issues are trying to climb muddy granite ledges. I am always on the hunt to find another used set. I usually run the pressure down between 6 or 8psi on dry trail and haven't blown a bead yet.  On the street i usually run about 20psi. The only down side to these tires are that they don't work well for me in the snow, but again, I don't have much rubber on them left.