Before I keep any shoe, I walk around the house for at least half a day with them on.  The molded insole and higher arch was a little jarring at first but I kept it up.  I was unsure as to whether to send them back or not until I put my normal shoes on.  Then I noticed the difference.  I seem to stand better in these and my back/legs hurt less.

I have slightly wide feet and these are definitely wide enough...and there is plenty of room for adjustment with all the straps.  If your feet are very narrow, these might not work.  I even had some issues with the straps overlapping.  Still, they're so supportive, I'm keeping them.  And I bought them in cork so they don't draw that much attention to themselves (or my feet!).