I have worn this style shoe for as long as it has been out.  I typically get about a years wear out of them.  However, I recently started experiencing leg pain and lower back pain by late afternoon every work day.  I noticed that the soles of my shoes are very worn after only 5 months.  I work indoors, and spend most of the day at my desk or in the server room.  My daily routing does not lend to excessive wear or my shoes.  Based on my experience and other similar reviews, this will be my last pair.  I just ordered a pair of Clarks.