5000 miles so far
I have about 5000 miles on my Triple-Treds so far, and no comparison to the Dueler H\T's that were stock. Far superior on dry and especially wet roads.
Only small gripe is that they are about 1 inch larger in diameter than the stock tire size, and they rub so slightly under near full turns while the suspension moves. This is always when backing up or turning into an incline (driveway).
When I bought mine in October, the stock size wasn't available. I think they may be now.
I haven't driven them in the snow this past Winter, because I have a set of Bridgestone Blizzaks on the original wheels. They have also been an awesome wet, snow covered road tire. I hope to get 3-4 Winters from them.