So far, incredible. After wearing these shoes for a week I have experienced improvement in my balance and reduction of chronic numbness in both feet,  I am 74 years old and stopped running because of these issues and heel pain.  Yesterday I ran two miles on a tread mill with no adverse effects.  I am cautiously optimistic about continued improvement and have ordered another pair of Merrell running shoes and a pair of their Barefoot casual shoes.  Latter today I intend to run barefoot in the park!

Gratefully,

Alex Cortlund (age 74)