I bought this book as I'd been waiting months for the scaled-down Passport edition to be published, but it kept on being pushed back. Glad I got the full book though as I gained a deeper and greater understanding of the material. Myers really gets into the historical context and goes beyond the mere requirements of the A+ exams. This is both a blessing and a curse, depending on how you look at it, as there's alot more to study, if you choose to.
The good thing about this approach is that the book retains its usefulness as a reference. Already I've had to refer to the book when running into problems I wasn't quite sure how to solve.
This is not a brain-dump sort of text. Get this book if you really want to get a full understanding of pc repair and maintenance and are prepared to put in the time.
Also, the included CD has loads of test questions, free utilities, etc.
Well worth the money. Best and most complete A+ book on the market.