Sec Reg Case Briefs for Cox, Hillman.... Useful?

[Pokemon]

Our professor gives a ton of reading and I am wondering whether people have found the case brief series for this book useful. The thing is that the cases do not seem like the more important part of the book, so I wonder how the rest of the materials are summarized.

PS: never used before case briefs. Also, accepting other useful advice about supplements for this class, which is literally sucking the life out of me.