I only had a very basic knowledge of banking and other FI's, just to give you an idea where I am coming from. I've recently completed the Asset quality chapter so I can only tell you what i think about the book to that point.
The authors do a great job of explaining each chapter's headlines. They start off with credit analysis and how banks works. In the how banks work chapter he goes over all the products a bank offers (from loans to derivatives, to investment banking, deposits to you name it they explain it). He also explains what each product is and why a bank offers it and who typically uses it. He then proceeds to discuss the different groups within banks and how they work together (treasury, loans, investment banking etc...).
The income statement and balance sheet chapters are self explanatory, the authors explain each line item and how they differ from non-financial companies. They go on to explain why a banks cash flow statement isn't as important as the other 2 sheets.
In the earnings quality and Asset quality chapters, he takes an extensive look at the quantitative and qualitative factors and the impacts they have on the banks (he also provides rules of thumbs). He further discusses the accounting for banks and how everything links together. I dog eared a lot and highlighted a lot in these chapters. There is also discussions on tricks banks play to make them look better and how to identify them. So far the focus has been a global view of banking, but he draws many comparisons between the US and the rest of the world.
The read is pretty good, it takes me a bit longer than usual, but mostly because I am absorbing the information. The book is a text book but reads far better than something from University, as the author was a credit analyst.
Either way, I met a fund manager I follow who was in the navy and then fell into equity research for FIs. I had asked him for a book and he pulled this one off his shelf and said its what he used to learn.
Hope this helps. The book is expensive, I took the chance with buying it and so far I have no regrets.