It's for real. You have two world-class athletes - not bodybuilders or celebrities or fitness models, but two of the fittest people in the world here.
What makes this book different? (1) The Allens recognize that most people have other priorities in life, such as jobs and kids, and therefore can't live in the gym for 2 or 3 hours a day. (2) They also recognize - unlike many athletes - that not everyone shares their passion for their sport. They don't expect you to open this book wanting to do an Ironman of your own as they've done, but they won't discourage you from training for one either!
The book is loaded with sound, honest advice, tips, encouragement and motivation. If you want to get fit, well, you have to work at it. They're not trying to sell you seminars or supplements or some 'magic bullet' that only slims your wallet. They're not trying to relive past glory days either - the anecdotes are purposeful: meant to instruct and/or motivate.
There's several different 18-week workouts here, depending on your goals. All of them offer a balance between cardio (ANY cardio - not just running/swimming/cycling) and weight training. During the week, most workouts are about 30 minutes to an hour, with a longer one on the weekends, and an optional one for the true weekend warrior. Plus, the Allens offer plenty of suggestions for squeezing fitness into a busy schedule for full-time employees and full-time moms.
This isn't another feel-good-because-you-showed-up 'exercise' book. This book is for people who are serious about trying to raise their level of fitness, no matter what shape they're currently in.
I also strongly recommend reading it thoroughly for some of the nuggets hidden inside. For example, 5-6 small meals, each about the size of your two palms held together. An easy visual guide to portion sizes that you always have with you! How can you lose? Or better still, how can you not?