I consider myself to be an advanced exerciser, but have never done any of Leah Sarago's workouts before getting the three Signature Series DVDs. I had heard such raves about her downloads and these DVDs on the Video Fitness forum, though, that I decided to give them a try. Although I have done workouts like Booty Barre, Rockin Models, Physique 57, and Core Fusion before, I had been worried that the Ballet Body workouts would be too advanced for a newbie like me. While they are definitely challenging, they are fun and tough -- and I'm so glad that I got them!As other reviewers mentioned, the Lower Body workout will have you shaking, but in a good way! It's tough, but you can start by taking more frequent breaks if you need to or by doing half the reps. This particular workout is divided into half standing work and half mat/floorwork. The workout runs about 54 minutes long, and you'll need a mat and a chair or ballet barre to do it.One of the only negatives in this and the Core workout is that sometimes I had a hard time seeing the angles and positioning of Leah's body. Instead of shooting her straight on, the camera sometimes shot from a side view, which made it hard for me to see the exact placement. I'm hoping that as I do this DVD more, though, I'll be able to make sure that my positioning is correct.On her website, Leah also has posted various rotations for using the DVDs. (I would include the link here, but usually Amazon won't allow you to include links in reviews; if you look at the product description above, though, you'll see it.) Here is a basic rundown of some of the rotations:BEGINNER/INTERMEDIATE:Day 1 Lower BodyDay 2 Cardio for 30-40 mins.Day 3 CoreDay 4 Cardio for 30-40 mins.Day 5 Upper BodyDay 6 Cardio for 30-40 mins.Day 7 Rest dayINTERMEDIATE:Day 1 Lower BodyDay 2 Core + Cardio for 30-45 mins.Day 3 Upper Body + Cardio for 30-45 mins.Day 4 Rest dayDay 5 Lower BodyDay 6 Core + Cardio for 30-45 mins.Day 7 Upper BodyADVANCED:Day 1 Lower Body + Cardio for 30 mins.Day 2 Core + Upper BodyDay 3 Lower Body + Cardio for 30 mins.Day 4 Rest dayDay 5 Core + Upper BodyDay 6 Lower Body + Cardio for 30 mins.Day 7 Core + Upper BodyFor cardio, Leah suggests that you do things like dance workouts, cycling, or swimming -- activities that won't "bulk" you up.I'm just starting a six-week rotation using these, so I'll be sure to update my reviews of each DVD as I continue with this program.Overall, though, I really love each of these workouts, and am eager to see what changes they'll bring.UPDATE AFTER THREE WEEKS: I did the Intermediate rotation using all three DVDs for three weeks (after which time I had to stop working out for a few weeks due to some stitches), and loved the results I was getting! My abs and arms were noticeably tighter, and I could see more muscle definition. My legs seemed to lag behind a bit, and I felt like my saddlebags were a little more prominent, but perhaps that is because I needed to add in a bit more cardio. These are great workouts, and I look forward to starting back up with them! The next time, I will take measurements to track my results better.UPDATE ON 5/22/12: I put something in my original review about how I thought that this workout made the sides of my thighs (the saddlebag area) bulge out more, but I think that that was the result of the program I did right before this one, which was Chris Freytag's 10 Pound Slimdown Extreme. I plan to give Leah's rotation another go some time this summer, when I have a bit more time to work out for longer periods.