I have a minor back problem and these shoes take the shock out of walking. I have been wearing them every day for about three weeks. Because they cushion your steps, they take about 5 minutes to get used to as we are all used to no cushioning when we walk. I would say that when you measure your foot with the print-out chart, be sure that you tape the two halves of the chart carefully along the lines and wear the socks that you will use with the shoes when measuring- especially if they are athletic socks, which are thicker than regular ones. I ordered my shoes a half size larger than the chart said and wide because of the socks. They fit fine. Everyones feet will be a bit different, so just use common sense when measuring. I love them--MB