Loved these shoes when I first put them on.  They look really nice on the feet and were quite comfortable at first.  However, after about an hour or so of walking around the house in them, they started to feel very uncomfortable, like something was rubbing on the side of my feet.  After a couple of hours, they became downright painful.  I took them off and inspected the inside and I believe the culprit is the stitching on the inside.  If you run your fingers along the inside edge you can really feel how hard and rough the stitching feels.  None of my other shoes have this problem.  They should put the stitching somewhere else where it doesn't contact your foot or at least put some soft lining on the inside of the shoe.  The other thing I noticed is that my feet sweat more than usual in these shoes.  I blame this mostly on the interior lining of the tongue and around the ankle (collar).  It's made of what appears to be a synthetic leather.  My Adidas have a soft, cloth lining that either absorbs the sweat or is much more breathable that my feet don't heat up as much causing less sweat.  I really wanted to like and keep these shoes, but the obvious design issues caused too much discomfort.  I hope PUMA reads these reviews and makes improvements to this really good looking shoe.