The Vibram 5 fingers are big with Crossfit

folks and some types of trail runners (the fellas that want the barefoot experience, but don't want to go shoe less).
I've heard good things from about 80% of people that buy them. The real trouble is for folks with odd shaped/odd sized feet, lots of rubbing complaints. Also, they'll smell like a hobo's ass if you aren't careful about cleaning them every few days.