I broke my ankle a year ago so I just started runming again.  I needed new shoes after I wore out my Asics Keyanno 22.  I debated and researched the difference between my old Asics ans this Beooks.  It came down to the room in the toe box.  Between the 2 shoes, the Brooks has more room in the toe box and after running for over an hour it accolades the swellling of the foot and toes. I love the shoes, they are light and comfy.  It was a great buy.