If you haven't done yoga before, this might be a tough workout - it's not too strenuous, but her instruction can be confusing (eg. "Move your shoulders up... down towards your back") and she doesn't explain the poses in-depth. Still, it's not watered-down and has more "true" yoga poses, unlike some of the other options.
I do this video as part of my fitness routine, but each time I cringe at some of the more annoying chatter - problems with grammar like "the femur bones is the bone," or telling us that chest stretches along with a good oil are great for preventing stretch marks (to which my dr. said she sounds like an enthusiastic, first-time mom.) The good news, if you have the DVD, is that if you're distracted by her instruction but want the thorough workout, you can select the video with music only.