Mr. Swenson introduces the video by admitting that most people don't have 1.5 hours per day to practice yoga (which is what the full Primary Series of Ashtanga Yoga demands). Over the years, he has adapted many of the asanas from the Primary Series into shorter 15, 30, and 45 minute sessions. I have practiced each of the varying sessions on the video, and I find them all useful for what they are.

If I simply don't have much time, the 15 minute session helps abate the guilt of not doing any exercise in a given day. I sometimes choose the 30 minute workout in the morning because I don't have the energy to perform some of the more demanding asanas (postures) that the 45 minute workout requires. I practice the 45 minute routine when I'm ready for a more serious workout. Sometimes I mix up the different routines for a two-a-day workout.

The instruction is clear and concise. Alternate postures are provided so that your practice can grow at your pace. I have particular interest in the alternate positions because my shoulders aren't very flexible. Through steady practice, I've been able to achieve the more difficult postures because of the less demanding "alternate" postures that are provided on the video. It's quite satisfying to finally touch hands together in Marichyasana A.

Most importantly, this video provides a window to a more involved yoga practice. The 45 minute workout is a great introduction to the Primary Series (a.k.a. First Series), which is another video by Swenson (and also the main subject of his "The Practice Manual" book). I can easily recommend this video because of the benefits I've experienced through its use.