These shoes are like walking on a cloud! I'm a bigger girl trying to lose some weight at the gym, and these shoes took maybe ten minutes to feel comfortable walking in. I've never had sculpt/tone kind of shoes before, and I was honestly surprised at how great they feel. These shoes were more comfortable on my feet than regular shoes have ever been! I have only had them for a day, but I can feel my muscles reacting -- I would definitely recommend these shoes - especially at this great price :)
BTW these are true to size -- I usually wear a 9, got size 8.5 and they fit at first but tend to get a bit snug by the end of the day.