I am a dedicated walker.  I walk 3-5 miles every day in all seasons, so I wear out a pair of walking shoes every 9-12 months.  This model of New Balance walker was comfortable from the first day - required no break in period, has no rough internal spots or fit issues.  Lightweight, good traction and balanced just right for pronators and my tibial torsion.  I would purchase these again.  Comparable to my 715s and much better than the 843.