My experience with addiction paints mindfulness poignantly. There comes a craving and I obey it, or else there comes a craving and I am mindful of it and use grounding techniques and self-talk until it passes.
Mindfulness definitely makes you more free, but I think there is a limit to it. As the above poster stated, some people are not even capable of mindfulness, and some have great mindfulness ability.
I'd say I'm 1% free and 99% automated.