I installed my Guard Dog's on leave and put 1,000 miles on them in 2 weeks. Moderate trails, dirt roads, 85 on the highway, they held up amazing. They ride fairly well, but like TheBlueDevil said, the road noise was pretty bad. That's the only detractor I could find in them. They grip like crazy on rocks and ride well on pavement. I get to drive from Montana to up-state New York here in about six months, so we will see how well they hold up on that trek.
"Sir, I don't get lost, I just discover alternative destinations!"