The Insanity: the Ultimate Cardio Workout and Insanity fitness DVD Program, is very helpful for anyone keen on doing some serious, challenging workout. Its personal trainer Shaun T will push you to your limits and make you fit and strong. The Insanity workout DVD has 10 intense workout DVDs that engage you in some strong workout moves. The specialty of this workout program is that you will not need any other exercise equipment or weight. It guarantees excellent results within 60 days of beginning the workouts. The DVDs are loaded with cardio and plyometric drills that are designed to enrich your strength, power and resistance. The workout program helps you perform maximum intensity exercises for longer periods with shorter periods of rest. This will definitely motivate you to do more. This fitness program is set up to provide you aerobic and anaerobic moves at regular intervals to help you excel. The Insanity: the Ultimate Cardio Workout and P90X fitness DVD Program also includes a nutrition guide and a calendar to track your progress. The combination of workout and diet plan provides maximum results. In addition, you can also use the online support tools that are very helpful if you need advice from fitness experts or your peers. The Insanity: the Ultimate Cardio Workout and P90X workout DVD Program was considered to be an intense and strong work out program by most of the reviewers. All most all of them felt that the workouts pushed their limits and provided extreme results, as advertised. Some of the reviewers marveled at the instructor's intense involvement and encouragement. One reviewer found that he lost nearly 12 pounds in just 60 days. Some of the reviewers had problems with the delivery and quality of the DVDs. One reviewer commented that this fitness workout program was not suitable for people with joint issues. He said that P90X supplier was not possible to continue the program without getting seriously injured. Some of the reviewers felt that the instructor was expecting extreme workouts at a short time span. The Insanity: the Ultimate Cardio Workout and Fitness DVD Program is considered to be the most challenging and interesting workout programs in the market. This workout program promises unimaginable results within a short period of time. With the constant push and encouragement of the instructor, you will end up loosing phenomenal weight and stay fit, strong and in great shape in just a few days.