This is a really good running shoe, both my husband and I have this model and I just bought a pair for our son.  It is a little more narrow than other NB models.  We are average runners, mostly on treadmills, about 20 miles/week.  My husband's knees had started to hurt which meant it was time for a new pair and immediately the pain went away, he said it was fun to run again.  These offer great cushioning without being clunky like our Asics nimbus were.  The color is nice too, a good change from your standard running shoe.