Anyone doing crossfit?

[onlydarksets]

A few people at work are doing it and swear by it. Has anyone done this?
Welcome to CrossFit: Forging Elite Fitness

CrossFit is a strength and conditioning fitness methodology. Its stated goal is to create "the quintessential athlete, equal parts gymnast, Olympic weightlifter and sprinter."[1] Crossfit is not sport-specific. It promotes broad and general overall physical fitness. CrossFit does not use weight machines. It features varied high intensity workouts based on functional movement. Most workouts last 20 minutes or less.

CrossFit - Wikipedia, the free encyclopedia

I'm intrigued, since I want to stay in shape, but I don't have more than 45-60 minutes to do it.