i have been running for more 20 years, and never worn anything but nike.  BUT NO MORE!  i finally broke down and bought these because of the incredible reviews -- that and the fact that i have a narrow foot, and nike just doesn't make good narrow shoes -- even the narrow ones i have are too wide.  it's as if this shoe was made for my foot.  bought the 9.5 AA and it's perfect.  it feels like running on a cloud.  now i feel like a fool for having been a nike addict -- they just don't compare.