Internal Family System Therapy (or Model)

I am just wondering if anyone has any experience with this type of therapy? If so, could you explain, in a practical sense, what it is and how it is helpful for you? Internal Family System Model http://en.wikipedia.org/wiki/Internal_Family_Systems_Model Internal Family System Therapy http://www.selfleadership.org/ Thanks all!
https://www.myptsd.com/c/threads/internal-family-system-therapy-or-model.52632/