These shoes are very comfortable to wear around for daily use and work out in, but the heal area on the inside of the shoe started getting holes worn into them after only about a month or so.  I haven't even worn them all that often since purchasing them since I wear dress shoes and have multiple other shoes I work out in.  I didn't pay very much for them so I guess I got what I paid for.  I would purchase another NB shoe if it was a higher end model as I've had success with them.