Listen. Like all "quick guides to getting your baby on a sleeping schedule" this is an interesting, but fictional read. This book promises a surefire guide to getting your baby on what all new parents dream about - a "sleep schedule". Well keep dreaming. There is nothing remarkable in this book (except if you think placing your child in its crib and allowing him/her to scream him/herself to sleep) is insightful.
I was a new mom (Thomas is 2 now) and actually did an excel spreadsheet after reading the book and was quite pleased at what Thomas' (and my) new schedule looked like now that I was "BabyWise". I still giggle when I think about it.
My advise is. If you really are intrigued, try it. If it works for you great. If you try it and you aren't comfortable, ABORT mission immediately. I felt like I failed when I couldn't pull it off - I know now that was an unreasonable plan for my son (he by the way is an excellent sleeper). In the end, kids figure it out, they always do.
The best advice I can give new parents is follow your head and your heart. You know more than you think.
PS: In the interest of being an informed parent, I would also suggest that you go on the web and do a little research on Gary Ezzo before you jump in. I did after I bought and tried the Babywise method and was pretty surprised about what I found out.