I highly recommend these shoes.  Up until these, I wore strictly new balance.  I thought they were the most comfortable things ever.  Then, based on friend's comments, I bought a pair of ryka's.  I will not be wearing anything else!  They fit like they were made for my feet--fit better in the heel with a little more toe room.  I do agree with the other comments...buy a 1/2 size larger than you usually wear.