Do Justin Rhodes' methods really work?

I have been following Justin Rhodes on his youtube channel for quite a while. This past weekend my wife and I watched his 'Permaculture Chicken' movie. We were very blessed by this educational and information-dense production.
Justin together with Karl Hammer challenged and inspired us to push our farm's limits further and try to create more solutions for free feed for our commercial chicken operation.

http://abundantpermaculture.com/
https://www.youtube.com/channel/UCOSGEokQQcdAVFuL_Aq8dlg