I'm using the Wiley book and been studying for approximately a week now. I've completed the first 3 modules (7-9) and found overall that the book is very detailed, (which is good) but weak in some areas in terms of being detailed. However, it all depends on your background in being already familiar with the material. There are some areas in which I have no background at all and, of course, they are the areas that I happend to take it slow.

What I suggest is to know the journal entries and how it would be presented on the financial statements. That would drill down on your understanding of the material. But again, it depends on your background.