I am very impressed with this workout system, low cost or no. My initial thoughts:
You can purchase this set at Walgreens, Bed Bath & Beyond, Sports Authority, and Dick's sporting Goods. You will need dumbbells and an exercise ball for these workouts. If you are someone who wants to workout at home you probably already have these (or should get them!).
So, yes the packaging is a little cheap, but for $19.99! I am amazed. It is a good nutrition plan that's included. Complete with a 28 day meal plan, a few recipes, and a shopping list. The workouts I've tried so far are awesome (Tabata Inferno and a few others will be STAYING in my workout rotation long-term). This is definitely the best workout value I've seen.
I am just a blogger, not a doctor, trainer, or any sort of professional. What you read here are my personal experiences and opinions. Of course, always consult your doctor before trying a diet, supplement, or new workout program.