So here's my take on these: I love them. Going back and forth with these and my old favorites, these have become the clear winner in shoe of choice. The uppers are as soft as a slipper, and wearing them they are the most comfortable shoes I have ever worn. The soles have flex grooves from toe to heel, so even with some slight overpronation problem, the shoe allows natural movement without restriction. I still have some instability issues in my ankles, but I'm positive that comes from babying my feet for so many years. All the info suggests with time the bones and ligaments will adjust to this type of running.
After years and years of searching, I thought I had found my perfect shoe, which until now I had. But clearly this barefoot concept has benefited me more than hurt me, and its going to be really difficult going back to my old shoes, if I ever do. Which leads me to say:
For sale. New, never taken out of the box, Brooks Adrenaline shoes, size 10.5.