There is no doubt that this diet works - it's delicious, extremely easy and makes complete sense. None of this working out what's high or low in GI, or worryign about mixing different types of foods, or any of the usual diet rubbish! It's simple, easy, yummy, and I've lost loads of weight. My (very overweight) brother's doctor recommended it as the only diet she knew that really worked! So undoubtedly worth buying.
BUT I wish they'd reprint and reorganise the useful bits in this book. The first few chapters are filled with quotes from Mrs E of Herts - "I lost lots of weight - thanks Rosemary" which is tedious. But most annoying is the lack of index. The recipes are fabulous once you've found them, but finding your way around the book is seriously difficult. I've ended up putting PostIt notes to index the various sections.
It's well worth buying anyway and worth putting up with the annoyance, but be warned that the book is far harder to get to grips with than the diet itself!