Yes, we did the Tough Mudder Indiana last June...it was challenging but also fun! I feel the TM is more about mental challenges (Arctic Enema, Electroshock therapy) than physical. Yes, some of the obstacles were physically difficult, especially the 12 foot walls, but there are plenty of people there to help you! TM is more of an experience/team building exercise than a race! Definitely recommend it as a one time thing/challenge. Let me know of you have any questions!