These were my first real running shoe.  I've got about 250 miles on the pair now, so I feel I can give an experienced review overall.  These are dedicated running shoes for me, no other usage aside from warm up walks and street running - asphalt, concrete, very rarely grass when I have to skirt around puddles or slippery pavement.  I only ran in the rain a couple of times.<br /><br />First, quickly, these are very comfortable shoes, lightweight, and stylish.  I trained up to a 5k (3.1 miles) without any issues aside from 1 little section of mesh on the left shoe spontaneously disappearing/breaking.  Not sure how that happened, but it did.  It has not gotten worse over 100 miles or so, which speaks highly of their mesh quality I suppose.  Could have snagged something I suppose.<br /><br />When I got past 3.1 miles consistently, that's when I started to get a case of plantar fasciitis in my right foot, and the right side of my foot (outer edge) started to bug me.  Not sure if I'm just dealing with a shoe that is 1/2 size too small or something (my foot feels great in it, before running, during and after).  But, it's interesting to note that as my distance increased (very gradually) and these shoes are aging, something has changed.<br /><br />I also noticed a tear above the left big toe, in the fabric layer under the mesh.  It's about 1/2 inch now, but I expect that will grow.  And gradually my toe will probably poke through the mesh - before that happens, I intend to retire this pair for a new pair shortly and use these for walking.<br /><br />So, I expect to get about 250-300 miles out of this pair of shoes.  I've read you can usually get around 400 miles out of a shoe, but that's probably a general guideline and lots of factor come into play - your personal stride/gait/wear patterns, surfaces you run on, etc.<br /><br />Aside from the unexpected wear above the toe, the random mesh fraying, and plantar fasciitis in my right foot (which honestly I can't attribute to the shoe necessarily, but it's worth noting), I do enjoy how these shoes feel on my feet and while running.  I may get another pair (perhaps a little bigger) or I might try another brand...haven't decided.