If anyone wants to try out these super trainer. Ride is very unique; its wild is only way I can describe it.
Has been handwashed cleaned and ready.  Got it from fellow hobby jogger;  don't know how many miles but from the sole its pretty low miles. 

Andrea from Doctors of Running says Mid-foot Striker will benefit the most from this rocker.

https://youtu.be/W1QKaUPCPAY?si=PPmxsey0lHnoQbkH&t=647