Hi guys, I'm Matt Vaughan, and I actually participated in a lot of the work that went into Beyond Tells, so hopefully I can offer a useful perspective here.
To answer the primary question of "is it worth it" - yes.
Obviously I would say this since I worked on the product myself, but I also purchased the original Beyond Tells 1.0 which was released in 2014 and was blown away. And this is not a "revamp." This is a 100% new product that is about 10x more robust and more practical than the BT 1.0 course.
I would say if you felt you didn't learn ANYthing from the free first week, that you should rewatch it. It's not meant to make you a killer in tells - it's meant to the lay the foundation, but there should still be stuff in there for you to think about and digest. It's more so meant to show you the power of tells at the table and start to build out a foundation than teach you "quick tips and tricks" in a week - that's why the course is twelve weeks instead of one. You won't be able to start practically applying the stuff until you are in weeks 2, 3, 4, and beyond.
This post is not an advertisement - I just want to be clear that I personally would gladly pay the money for access to the course myself again. And having actually helped CREATE the course, I can say that I'm completely happy with how it has turned out, and with what I think it can do for live poker players who are committed to putting in the work.
But again, to be clear... you need to PUT IN THE WORK. This is not a 2 weekend commitment and this is not the kind of tells advice you are used to where "his eyelids fluttered when he bet so he is strong." This is a 12-week course with hundreds of videos, practice tests, reinforcement material, and walkthroughs. And you will most likely be revisiting the material for months and months after as you absorb and implement new stuff into your game.
If you play online, don't buy the course. If you're not gonna put in the work, don't buy the course. If you don't like money, don't buy the course. (Sorry, I had to lol.)
I'll be active in this thread if there are any specific questions that people would like answered as well, so let me know! (Also shout out to Jilly for letting me know this thread existed so I could hop in.)