I've had these for 6 months and I love these shoes.  I can't go back to normal running shoes.  These shoes have enabled me to adapt a mid-strike running style which has allowed me to lean more over my toes (less upright) and make my running overall more efficient and less taxing.  I have no pain from sore muscles running anymore.  In fact, I use running to get over my sore calves or quads from strength training when I get too ambitious.

I wear these mostly without socks, but it doesn't bother me to wear them with thin socks when it's cold outside.  And, because there's no toe thing to contend with, that is an option - unlike other minimalist shoes.

I have talked my husband into getting the men's version of these shoes to help with his aching/weak calves and knee pain.  I will by another pair of these whenever my shoes wear out.  They show no signs of wear on the outside - so that may be awhile.