These shoes, once I got the right size, have made a big difference in my life.  I was going home limping from being on my feet all day, and I couldn't sleep because my arches were burning and sore.  All that went away.  It does take a few days for your muscles, etc., to adjust to being in a different position, but I have a new spring in my step that I thought was gone for good.  Now I have to figure out which slippers, sandals, black shoes, etc., to get.  I got another pair of Orthaheel shoes that I had to return because the soles were too thin, but these are good....