I bought this book in desperation when I was completely unable to control my eating. A month later I am (usually!) eating 3 regular meals and 3 small snacks a day.
I was impressed that what is in the book is based on real research. The author doesn't make any miraculous claims but is realistic about what is achievable.
The programme Fairburn sets out is easy to understand and starts small eg just record what you're eating & how you're feeling, then progresses so over time you learn how to deal with the urge to binge.
I think one of the other reviews says this is a 12 step programme - this makes it sound like Overeaters Anonymous, which is misleading. The author does not recommend abstaining from any specific foods, and the steps are not similar to OA - and there aren't 12 of them!
If you need help to sort out your overeating then I would say for a few quid this book is definitely worth a try.