We bought the book a few weeks ago but haven't started it. It's a bit slack, I know!
Our problem is $$.
To follow the diet to the letter (like I want to do), we need to probably spend double what we normally do on groceries for the first week (this is due to all the condiments and stuff that you need to make the meals etc.).
We will get to it.
Until then, we have been trying to up the exercise and the fruit and veges.