I’m a fan of her work. You don’t need all the books and you can adapt the techniques to make them work as long as you respect the underlying principle, which is that blood is magnetic, and blood sorcery is science, and understand how magick works.
I’ve never taken lessons and the couple of techniques I tried (temporary portal, some basic communication, making elixirs is very effective). I have enough experience to draw on to see what the work is trying to do and adapt to suit, kind of like a cook with a new recipe book that already knows the chemistry of cooking and how to substitute when needed. Does it always work? no, but every time you try you learn.
Me, I prefer my own way as she does, and I believe that not all techniques work for all people the same way, because our energy systems (and hence magnetism) are all slightly different, and these subtle changes and the changes in our aptitudes and abilities with them, really matter. But she is an inspiration, and that’s awesome and is plenty for me.
So, as a qigong practitioner I know that "intention is everything. And I mean, everything. Energy follows mind. Strong manifest energy like magnetism is very hard to change with the unascended mind, so as unascended humans we don’t do that, we leverage it to make our magick stronger. Sorceress Cagliastro has done that very well, but you don’t have to copy her techniques by rote to achieve the same results, you have to use the principles.
I’m currently ramping up to work through 29 Deadly Sigils, so that will be fun. THE BOY contacted me in TGS so I’m feeling… invited, and very positive for a strong outcome.
I still have with me the spirit of a witch who came to me to work together attracted by the energies of what I guess you could call the Blood Sorcery current. She is able to teach me and in return I go with her to do joint workings in the astral as she resides there and has the kind of control and understanding over her existence and consciousness that I’m very interested in, but it helps to get a little oomph from an entity like me that has a qi body that is fed by a physical body sometimes.