I am a member/subscriber of Pace Morby Subto, Limitless Deal Flow, and Gator. I am also a member/subscriber of Vodessey, Short Sale Prophets Basic, and several others. I am happy to talk to anyone about my experience and views on these mentorships. I would say first and foremost go download the "Guru Manifesto" from Vena Jones Cox who is by far my favorite educator. Subscribe to her podcast too. She's great and free (sure there is a paid option - Of course).
Also, keep in mind that some mentorships are lifelong and have conduct rules. IE if you were to be "negative" you could be thrown out which is a pretty stiff penalty given the costs. You will not get full honest reviews publically on any program.
None of these programs contains magic. They contain shortcuts to knowledge and potentially community. You can get all that knowledge elsewhere it will likely take a lot longer. Also for all the value they provide the number 1 thing they all exist to do is enrich the Guru and give him a captive audience to sell more stuff to. Yes, there can be value in there but as a member subscriber, you will get non-stop solicitation.
Recently I had one of my Gurus tell me I would never get success with their basic program (of course this is well after I bought it) and I needed to spend $75K!!!!! for their one on one program. Education on real estate appears to be a much better business than real estate itself.