These are without a doubt some of the most beautiful running shoes I've ever seen!  However, when I put them on it was like strapping boards to my feet.  I think I've been spoiled by my last two pairs of Saucony Peregrines.  It may be no fault of the shoes, but more a problem of my feet.  I've had plantar fasciitis and my pt suggested sauconys for running.  I needed a light running shoe that would let the muscles of my feet move.  I credit them along with my physical therapist for curing my plantar-fasciitis.  I wore the Inov-8s around my house for a few hours and found them stiff and unyielding.  My feet began to ache, so back in the box they go, and I'll be buying another pair of Peregrines.  Again, may be more a problem with my feet since most people seem to really like the Inov-8s.  Time will tell.