I bought these before Christmas, I wear them to work, on concrete floors  ~40-45 hours a week, and then some, I use them as my "winter" boots. They are awesome, no break in period, warm, but not too warm, up until these, I have only ever bought Merrill's. I have found that these are softer around the top than Merrill's and don't have a break in period around the ankle. The only problem I have is the left sole is coming unglued at the back, I'm sure they are fixable. I would still buy another pair though.  LOVE THEM!!!!