As I prepare for the CISA exam, this book was an enjoyable 'slow burn' that I spread out over the course of ~60 days.
I have recently purchased the vendor book for the exam directly from ISACA and interested in seeing the difference between the two. I purchased physical copies of both of these, so it'll be fun to do a comparison here in the near future.
I plan on taking the exam here pretty soon... most likely within the next ~2 months or so.
What I see on the actual test will determine if this 4-star rating sticks or not and how relevant/spot on the content delivered here is versus what I actually see live when I actually take the CISA.