A few of my fellow club members have exo's they swear by them and I have to admit that they have saved them from damage a few times, but we did have someone that was not a club member go out with us once and he rolled it on Empire Strikes Back in Stoddard Valley. It did hold up but the cage actually damaged the cab. The cab shifted and hit the cage crushing down on it. Here are pics of my club members exo's:
