The lightweight, responsive, comfortable shoe that I've been hunting for years. You did it right this time, Nike, and have ruined me for all other shoes. I'm marathon training and at 45 miles per week right now. The Zoom Fly has added comfort and speed to those longer runs that I've not felt in any other shoe. It creates a truly unique running experience and I'm hooked on it. I'll wear it them in the Marathon and won a 5K in them last week. Perfect at every distance in between.
It is slightly narrow through the midsole, but not to the point where it is bothersome. It breathes well and offers some structure in the upper, but not too much to be restrictive. The carbon-infused plate blended with the foam sole creates a springy, fast, comfortable and minimal-resistance ride. It's rained every day since I bought them, so I'm probably ruining them running in the rain, but they even hold up well on slick surfaces.
Nike, please add more shoes like this to your rotation. You are truly onto a revolution in distance footwear.