I like the comfort and feel, but I haven't had these 3 months yet and the left shoe makes a smoochy sound when I walk.  It's like the heel ran out of the padding/cushion (not a shoe expert/not sure what it's filled with) and it's annoying when I walk.  I haven't worn them enough to have this issue.  Would like to exchange them, but the 30 window has closed.  Ugh....