I own 3 pairs of Vibrams, KSOs, Classics, and the Bikila LS.
The Bikila LS is similar to the woot offer here, but different lace system that I personally found more comfortable. I love them, super comfy, great to walk or run in.
Washing method I use: When they start to smell a little meh, soak in a small tub of water with Oxyclean, put it in and on the shoe, then scrub the inside (including down the toe holes) with an old toothbrush. Rinse repeatedly, making sure all Oxy is washed out. Set to dry in front of a fan over night.
How often you must do this depends on use, but you can go a surprisingly long period of time, several weeks or months.
Normally I suggest people try these on in person before buying them, especially if you're fairly picky about your shoes already... I went through all the styles they offered at a local store, over a dozen, only a few felt comfortable for me... BUT, at this price? holy cow, grab a pair! You can easily cragislist them for a little over the price paid here to make your money back, just say "tried on once, wrong size for me"