I purchased these on a daily deal, and so far am happy.  I haven't used them much yet, but wanted to add a review regarding the color.  I purchased the blue/red, but what I got was a teal/orange.  For me, this was an awesome improvement!  I love the brightness and color combo.  But, for others, this may be an issue.  The shoe is very lightweight and breathable.  So far, I'm happy, but will update if that changes when I hit the pavement.