This pair of shoes is awesome!  I also have a pair of the Dansko Professional series and I actually like these better.  The shoes were a little tight for the first day or so and there is a seam on the inside of the shoe that rubbed for that first week, but now they fit like a glove.  The Danskos and Sanitas are the only shoes that I find are truly comfortable to wear for long periods of time with lots of walking--more comfortable even than tennis shoes as they give excellent support without losing shape over time.  I fully expect these shoes to last me 5-10 years.

Edit 7/18/14--after a few months of use, the soles of these shoes bunched up and got strange and they are now uncomfortable.  I will probably replace the lining but it is glued down, so it's not easy to get on or off.