Now, this article sounds "anti-Crossfit," but I think it does a good job at bringing to light some of the risks involved with participating in such a regiment. I'm not an advocate of Crossfit, but I'm not a Crossfit "hater" either.
I think Crossfit does a good job in bringing people together, building camaraderie, and motivating people to work their butts off. I have friends that are in dang good shape by participating in Crossfit. And, they love it.
If you are having fun performing Crossfit workouts and are getting in better shape, keep it up.
All I ask is you please be aware of the risks associated with it as well.
TAKE HOME POINT:
Performing a Crossfit workout once or twice a week to spice up your metabolism or to implement some variety into your routine will not hurt you.
Doing Crossfit everyday as your exercise "program" will eventually hurt you.