For my riding these tires are excellent. I do a lot of mud and light rocky trails.
In the mud I have found that these tires really clean themselves and pull me through what my previous ones that came with the machine couldn't.
On the rocks I encountered some jagged stones that would have punctured my old set (and did) but just scuffed these and left superficial
This is the second set I have owned and I ride every weekend and abuse my machine every minute of riding. My old set of Bearclaws lasted a season and three quarters which for me is that really awesome!
*just a note: when I replace tires I have to replace rims too.