This book is incredibly clear & easy to follow. The guidance on working out your body shape is simple, and the programmes which are then set are fantastic - varied, thorough, targeted and effective.
The problem - and it is a big one - is that there for each body type, he recommends you do 5 different workouts per week (or 4 if you are hourglass). In each of those workouts, there are around 20 different exercises. This means that unless you take the fairly big book with you to the gym, you will have to try and go on memory, or take notes with you. I ended up having to make four postcards with notes on each exercise I needed to do/reps/times etc, and took the relevant one with me each time to the gym. Laminated pocket-sized cards which can be carried around would have been useful with this book.
You need to be able to devote a fair amount of time to this programme - each session is lengthy (1-1.5 hours, I'd say if you follow the pace/breathing he suggests. At peak times in my gym,, when I sometimes have to wait for equipment, it is even longer.). Also, it doesn't get quicker the fitter you are - instead, you add more reps! You can't really miss one of the sessions either if you are pushed for time: each session has different goals & targets different areas, so you would get a very unbalanced workout.
You will definitely need access to a very well stocked gym - every body type has routines which involve using all kinds of various equipment. Even some gyms may not have it all. There are some routines designed to be done at home, but they also need equipment such as a gym ball and a skipping rope.
If after all that, you are willing to put in the work, then this is a fantastic programme!