I've just found this thread now, and I'm so glad because I've just started working with the book.
I'm using the Dark Grimoire tarot deck for this work. I thought the images were pretty dark and shiver-inducing, but working with them, I've found that they're actually quite gentle. Which is great.
I'm not sure how long it's going to take me to go through the book, though, as I seem to be taking one night for the spread, and a couple of nights - or more - to meditate on each card separately.
I started the shadow work at the beginning of February, and I'm not sure if it's linked, but February has been simply UNBELIEVABLE. Intense. Tiring. Moody.
Is that normal? Did anyone else have anything like that happen? Is it because I'm shifting stuff? I usually do a Reiki self-healing after each meditation on the cards.