I own two other pairs of vibrams - a pair of bikala and a pair of jaya.  Both of them fit excellent and are wonderful shoes.  Both of them have all the benefits you've read about barefoot effect style shoes including relief from joint pain, better posture, increased flexibility.. oh, and being able to enjoy running.  The Classics however feature an annoying tab in the back that digs into your achilles tendon, causing soreness at best.  They also don't seem as well made as my other vibrams.  It goes so far that on the vibram site, many suggest removing the tab with an exacto knife.  As the jaya shoes are similar in fit to the classics, I'd just prefer to buy my shoes already ready to wear.

Anyhow, I returned these.  Even though they're nice and cheap, they still just don't cut it compared to the other models.