No this isn't spam or affiliate crap. I'm doing a tough mudder event in a few months so to prepare the wife is making us do the Insanity workout. 1.5 weeks in and I am already seeing definition in my abs. It is crazy to see because i've never had definition ever. But..its HARD as fuck. Even the instructor guy and his minions tap out and take breaks lol Anyone here done the full 2 months?