I absolutely love these shoes!  My ankle and heel having be driving me crazy lately and I came to the conclusion a lot of the pain was because of the flips I have been wearing.  I have no arch and I was a little afraid the high arch would hurt but boy was I wrong!  They feel so good.  I wore them for a few hours like it was suggested you do and they felt really good then.  I wore them all day long today and my feet haven't bothered me at all.  In fact I just ordered another pair (Tide Sequins).  Well worth the money!