I liked this book, I have bought other Osborne books before. I have just taken the exam and passed with reasonable marks. The down side is that this book is sadly not quiet good enough to get you through the exams. Let me explain.
I worked through the book at a steady pace for 5 weeks, I felt ready and aced the questions in the book. So I booked the exam. I then happened to look at the Microsoft book from a friend, and just went through it thinking "why have I not seen that before?"
Also bear in mind that the test questions are much much harder in the real exam and nothing like the ones in this book.
This book is a good introduction, but will not get you through the exam by itself.
Chris Britton A+ MCP