Disclaimer:  I have only had these shoes two days, but I absolutely love them.  As others have said, there is no break-in.  They came out of the box feeling like they were molded to my feet.  I've worn them steadily preparing for a trip to Yellowstone and have had no areas of rub or chafe.<br />Sizing:  the guy in the store told me to go up a half-size, and he was right.  Both my husband and I felt our standard shoe size was too tight.  I am normally a 7.5.  The 8 felt just right, but I need orthotic arch supports.  I went up another half-size to accommodate the arch supports and they fit perfectly.  Usually I will find the arch supports raises the top of my foot too high and it rubs -- but not in these.  Amazed there is no pressure there, no rubbing.  My husband tried a half-size up.  The length was good but width felt tight.  Not all of the models offer Wide yet.<br />Based on the mid feeling so well broken-in out of the box I am doing a 2nd-day to get the same shoe in low for normal wear on the trip.  I would never normally consider ordering a shoe 10 days ahead of a trip, but I am really confident these will surpass my current broken-in day shoes in spades!<br />One other comment.  A big local independent outfitter has just begun carrying these.  They told me a man came in and tried on every single hiking boot they have (~ 20 models) and walked all over the mall in each.  He decided on the Oboz.  They are very impressed and the kid who waited on me told me he couldn't wait until he could get a pair.