The book is written in Rachel Pollack's usual style that's very readable and feels like a thorough explanation from a personal teacher. This deck separates the minors from the courts.
I come from a primarily RWS background and these Minors (cards ace - 10) have a very different feel to them, both in that they are Thoth-like "moody minors" (rather than illustrated) and in their intention. Cards 2 - 10 each have an I Ching hexagram on them. Haindl didn't choose hexagram that best represents the meaning of the card, he choose a hexagram that he felt best rounds out or balanced the meaning of the card. I remain conflicted as to whether this adds value to the cards or muddies the waters, but that's an issue with the cards themselves. The book does a very good job of explaining the meaning of the card and the intention in choosing the hexagram Haindl did.
The Courts aren't your typical courts at all. These feel far more archetypal than the courts usually do. Named mother, father, daughter, and son, it would be a mistake to see them as just renamed king, queen, knight, page. The book gives a couple pages to each court discussing the relevant mythology and/or history of the card. While that is informative, it doesn't always present the information in a way that easily translates to tarot card interpretation. Divinatory meanings are given, but are rather short. Since these cards don't easily correspond to standard courts, I'd have liked to see a bit more function given in this section.