I was excited about getting these shoes because they were recommended to me by fellow runners.  My feet overheat and these appear to be well ventilated.

I walked around in them for a couple of weeks before I started running in them and they were very comfortable.

When I started running in them I noticed that I was getting mild pain on the inside of both knees; this escalated quickly over the course of about a mile at a moderate (8 mile an hour) pace.  I had to stop and walk and even that was painful.

I was out of commission for several weeks and am now back to where I was (several months ago) before I bought the shoes.  I didn't go to a doctor; I just rested, used ice, and naproxen.

I don't know if I got a bad pair or if it was just my biomechanics not liking this shoe.