For years, New Balance has been the shoe-of-choice for me.  It's a well-made product (although I wish they would make the velcro straps a bit longer).  With other models, I've always ordered my usual shoe size.  With this one, 577, I have learned to order a half size longer and am pleased with a perfect fit.  I especially like the sturdy heel system.  With the removal insoles, I can insert supporting material  (unsupported, I walk on the outer side of the foot which results in balance problems) under them without feeling any ridges.