I have been a fan of Kathy Smith videos since the early 90's when I used her fat burning aerobic tape daily and lost 80 pounds. I've always used weights on my own but never knew too many ways to use them and then I found this video. I have been using the upper body portion for nearly a month and I am amazed at the difference in my arms (even after the first couple uses!) The 20 minutes goes by so quickly that I'm usually shocked when it's over. For individuals that have never used weights before, make sure you start only with 3 or 5 lbs and work your way up. What they don't tell you on the video package is that you're supposed to have a set of three different size weights and if you don't have a weight bench to lay on, you'll have to use the floor with a pillow under your back for one part(Kathy instructs this.) The two track system allows you to do more reps with lighter weights or less with heavier ones. One thing I love about Kathy Smith is that she is encouraging without being annoying. Granted, a few whoops and squeals make it on the video, but who wants to hear a whole video of "you go girl, you can do it!" Not me. After Kathy Smith, I won't try out anyone else! I thought I would only use the upper portion part of the tape and one day decided to do the lower body. All the moves are very easy and make for a very complete workout. Like the upper body moves, I started seeing and feeling results. If you want to define your calves, quads and even your butt, she has some simple ways to do that! I'm impressed with the two portions of the video.