With less and less time it's tough to stay in shape. You need to be tougher. Modern Warrior is made to accomodate your busy lifestyle. All routines are under a half an hour to accomodate modern warriors.
Don't ignore good form. Actually learn the proper way to perform the exercises that appear in the routines. Read and practice step by step how to perform the exercises to prevent injury and maximize your results.
None of the fitness routines require equipment.
Use your own body weight to develop true strength and build a better body.
Don't pay hundreds of dollars on fitness routines you're never home for. Your mobile device is always with you and so is Modern Warrior.