Okay, I have never really been into the Biggest Loser or even the 30 day shred video. I have tried them but I never could figure out what the hype was about but this workout Boost Metabolism definitely was AWESOME! I actually found it on Exercise TV and my kids (age 8 and 5) even loved it. They did almost all of it with me and that NEVER happens. I also tried No More Trouble Zones yesterday and it was also really good. I am sore everywhere today. I burned 350 calories with No More Trouble Zones and 425 calories with Boost Metabolism. I will definitely be purchasing these. I LOVE these workouts and I am highly impressed and I look forward to doing them again and again. I know I will see results and I felt fabulous after doing both of them. Try these you will not regret it!