The first one is low-impact and low-sweat (for someone who is not completely out of shape like I am, no-sweat). It's fun and sensual, and although some moves are tricky and you may have to view them in slow motion to get them fully (but I am phenomenally uncoordinated, so it might be easier if you're normal:)). The next morning, your biceps will be sore. Your obliques (the side abs) might also be. During the workout, you'll also feel your outer thighs, abs, front of thighs, shoudlers and glutes.
The second workout contains a lot of JUMPING. Quite high-impact When you do it, you sweat and you jiggle all over. However, it gets your heart rate nice and high and it gives your calves a killer workout. Your biceps will be sore the next day too.
For both workouts, the instruction and the demonstration are fine, although some parts of Neena and Veena's bodies do get cut off sometimes. The instruction, however, is clear, and you get the option to turn it off once you know what you're doing. Their outfits let you see EXACTLY what they are doing. I found their bright smiles slightly annoying (but then, for the most part, you don't have to look at their heads so it's not important). By contrast, you DO have to look at their midsection quite a lot, and I found the fact that it's not completely flat and firm comforting (doesn't make me feel like a fat sow by comparison) and helpful (it's easier to figure moves out if the presenter's body is sort of like yours because then you know exactly what should be moving/jiggling and what shouldn't be).
I didn't like the fact that if I chose the Neena and Veena commentary option for audio, there wasn't any music to accompany it. The commentary itself was interesting though.
Finally, the extra dance footage is varied and gives us beginners something to strive for. Also, Neena and Veena's little entrance dance gives us something more ACHIEVABLE to strive for.:)