Yes, Landmark can give some people some useful skills, but from what I have observed, this comes at the expense of their character and their free will.
At Landmark, they define integrity as doing what you have said that you will do, and often it is. But consider this: What if you have promised to do something, and after rethinking it, you have decided that it is wrong?
In my mind, it takes
Forum:
Large Group Awareness Training, "Human Potential"