I'm wearing a pair of classics right now...they feel really comfortable, it's like i dipped my foot in liquid rubber! I can feel the cracks in the tile, i can feel the texture of the carpet...there's no artificial padding whatsoever, the shoes just kind of melt into your foot.
I'm definitely getting a pair (my wife is, too!), and a couple pairs of Injinji performance toe socks to go with them, just for moisture management in the 120° summers.
http://www.injinji.com/tetratsok/performance.htm
I'll keep you guys posted!