I ordered these specifically because I was going on a walking tour of Ireland and wanted something for that trip. I got a little lazy and didn't break them in as much as I planned to but it didn't make any difference. The shoes were comfortable from the start of my trip. They held up well under very different conditions (city tours, rocks, fields, etc.). They even proved to be dry during the soft (i.e., rainy) Irish weather. While my Birkenstocks will still be my "go to" choice, when I need more substantial footwear, these will be the ones.
I followed others' advice and ordered them a little larger than usual (11 4E instead of 10.5 2E). The size seems just fine.