I have a pair. I've only ridden with them a few times. What I can say is that they are harder to get out of the pedals, mainly because they are looser on my heal that my Shimano MT41s. They are narrower and stiffer than a regular set of Keen Newports.

Mine haven't stretched out at all yet. And to make sure that I can get out of the pedals, I really pull the cords tight to make sure that I have as snug a fit as possible.

Mark