I have alot of IT experience, but not with infrastructure, most everything in this book was new to me. I used it as my SOLE study guide, I did not use anything else. I studied *hard* for about a month and a half, reading the book twice (not part 2) and did most of the labs (I skipped some of the rras ones), and made many notecards that I always took with me to review while I had free time. Using the testing CD that comes with it, I only got ~70-80%. On 1/7/10 I got a 780, and was very happy to finish my MCSA.