I've been using P90x workouts for about 2 months now. I've lost a total of 5 pounds, and dropped 8 % body fat. When I started I weighed 275 lbs. For those of you out there that are deficient in math, that means that I currently weigh 270 pounds, still a lot, but I've gone from carrying 110 pounds of body fat to only carrying 81 pounds. That's really amazing isn't it! My lean body mass has also gone from 165 lbs. of lean muscle to 189 lbs. of 100% lean muscle. Holy Crap! In only 2 months. It gets better. My left knee is almost bone on bone at this point in my life, thanks to a skiing accident when I was a teenager. As I gained more and more weight over the years, the pain and swelling in that knee got worse. When I first started with the P90X DVD's I'm ashamed to admit that I couldn't even do a simple jumping jack because of the sharp pain in that joint. It's funny, the heavy weights are no problem for me, it was the stupid jumping jacks, well not anymore, i breeze right through them. To me, that's a big deal. I have more energy, more strength. My arms are a full inch bigger than they were when I started. Now that's losing fat and building up lean muscle. Muscle burns more calories than fat, so I'm actually starting to see the weight fall off on the scale in the morning. In all honesty, I gained 8 pounds during the first 3 weeks and it was frustrating to say the least. I didn't have Jillian, the fitness Nazi screaming at me for cheating or being stupid or whatever, but I could still hear her in my head yelling at me for not dropping the weight fast enough. My goal however, isn't to drop the weight so fast that I can make a GUCCi purse out of my leftover skin…….yuck, that was gross…..sorry. My plan isn't to just lose a bunch of weight and get skinny. I'll be fit. I want muscle, and I want a lot of it. I want to take my time and methodically go about my business. I'm doing P90X training at least 5 days a week. I'm riding my recumbent bike for 1/2 to 1 hour a day and next week I will start playing racquetball again. Wish me luck. To answer anyone's question about whether they should give Tony Horton's P90X a try, let me just say this…..YES!!!!!!!! It's a great overall fitness workout. It's the most amazing fitness program I've experienced. Give the 90 day, money back guarantee a try. If you do it and keep at it you'll be amazed at how much progress you can make to reach your overall fitness goals. Having a ball letting Tony Horton kick your butt everyday!