This is the first workout program I have ever followed for more than a couple of weeks, and I am actually enjoying it! Each mile goes quickly, thanks to the variety of exercises and the quick pace. I like that it is divided into short time periods, and you can choose to do from one mile up to five at one session. Each routine is a little different, too, so you can make each workout different. I really appreciate Leslie's instructions - they are clear and easy to follow. She gives lots of encouragement along the way, and is really helping me reach my goals.