I bought these for a 2 week vacation with heavy walking every day.  Day 1 they fit great and felt like I was walking on pillows.  After wearing them on the airplane, my feet and ankles swelled (never happened before), which made the shoes feel tight.  The swelling did not come down until I got home and got out of these shoes.  By the end of the trip my feet were sore and desperately longing for more arch support.

These might still be good shoes for light walking while running errands or walking the dog, but I wouldnt recommend them if you plan on walking for long trips.