I have been using these tires quite a bit on my work truck. I've put around 9,000 miles on them, had them loaded down many times and pulled heavy trailers. They have seen more than their fair share of heavy work and I'm really astonished at the performance. As shown by the picture of the tread indicators, these tires seem to have a lot more life left in them. I really love the deep tread design and the strength of them under heavy loads, the sidewalls barely give when the truck is fully loaded. Overall I think they have performed exceptionally well and I've really enjoyed them.