I run at least 5 miles/day and have a difficult foot - it is wide and I need a high arch in a shoe.  For me, the shoe makes my run.  These shoes are the greatest shoe I've purchased to date and I've tried most of the best brands on the market.  My feet, legs, knees and hips do not get fatigued while wearing this shoe.  I am, forever more, a confirmed fan of this shoe.