I've only been wearing these shoes for about a week, but I'm very pleased so far.  The heel fits snuggly, the toe-box is roomy, the instep is high enough--everything I've been hoping to find, again, in the New Balance brand.  I've worn NB for years, but the quality hasn't seemed to be as good as in years past, until now.  I'm so happy to have found the SL2 fit again.  After reading others' reviews of this shoe, I decided to buy mine one-half size larger than I ususally wear, as I wear onmi-wool socks year-round, and they can take up some length.  I'm glad I got the larger size. They fit perfectly!  And added bonus....they are made/assembled in the USA!!  Yeah!!