I have had this product for about 3 weeks. At first, it was very hard to get through just the ignition, especially with my astham being so bad. But after just a few days, I have more energy, stamina, and I love to do it. It really helps you to get into shape faster, and Billy really helps you with the techniques, and tells you exactly how to do it, and what you part of ypur body should feel the exercise so you are sure you're doing it correctly. And there are real people doing these moves, not just really skinny, size 1 models bouncing around. There are people of all shapes and sizes doing these workouts, and it motivates you even more when you know that you're not alone with trying to get into shape using these DVD's. And Billy does each workout with you, and keeps you motivated throughout the entire workout to keep going, which does help. And at the end of each workout, Billy gives a quick motivational speech to keep you going through tae bo and get into shape. I've already lost about 5 pounds, and I couldn't be happier about myself.