I've had these shoes (low boots) for about seven months. I've worn them nearly every day to work.  Five to six days a week.  9-10 hours a day.  Through the very rough Mid Atlantic winter this year.  They show little wear on the exterior or soles.  There was very little break in time.  Incredibly comfortable.  My feet didn't get hot, which has been a problem for me.  These boots really did exceed my expectations.  As others have stated, some of the recent New Balance products run a little narrow compared to their shoes of 10 to 15 years ago.  I typically size at 11 4E.  I listened to other reviewers and ordered 11.5 4E and they fit perfect.  The GoreTex kept my feet completely dry in all weather.  I will buy these again.  In fact, I may buy a pair or two more in case they are discontinued, like the New Balance 608 cross trainer was.  Can't be more pleased with this boot.  And I am very hard to please when it comes to foot comfort.