Have done them probably 10 times. I'm done with them now. I've learned everything i can from them. I would definitely reccomend them though. Truely does open up your eyes/mind to things you might otherwise never think about.
What kind of things does it make you think about? Like, would you say you've learned things relevant to your life today (examples possible?), or you just thought of some really weird fucking things due to being messed up? I just don't even know what to expect.