This is my favorite running shoe, and truth be told the shoe I wear most days regardless.  I don't run long distances: just 1 or 2 miles on the treadmill every other day so these last me almost a year.  They don't wear out so you can see, but I replace them anyway after a year and rotate them to a support role as a spare pair.  Super comfortable, nice support, and well designed.  I"m on my 5th pair.  I'm wearing these now instead of the more structured nimbus and find the support adequate to my neutral gait.