The book is quite good for revision and practice also it's good to get some ideas about the pattern and format. The book and the CD helped me to understand well about ielts. But I would prefer to buy latest version but it was costly so I bought this book and it's really good you should give it a try.
Although it is a wise choice to go for the book however it's a waste investment if CD doesn't work. It happened with me and I am highly disappointed. I can't do multiple exercises in the book as those are dependant on the content provided in CD.