[Jackson05]

The biggest benefit is that it gives you some common terminology so that you can talk to other TFS people across the country and you're talking apples to apples. It can be adapted to any style of play. You can run the ball or throw it as much as you want. I've never seen it fail when run properly. The problem is most coaches think they know everything and skip over some of the install and teaching points that are critical to it's success. I think it's definitely worth the money.