One of the challenges in learning a platform as broad as Documentum is that it can be difficult to absorb the relationships between the various components and services and their role in the ecosystem. Pawan does an excellent job organizing the material in a logical manner and his descriptions of some of the more difficult concepts are very clear and approachable. The study guide accomplishes the goal for providing an overview of the topics that are covered on the exam. I should also point out this is not a replacement for formal training (no exercises) but the example scenarios are well done.
For road warriors being thrown into the fray on a Documentum project for the first time this would be the first and only book I would recommend to get started. One last point – don’t assume that just because 6.6 is out that you should wait for the next update. I could not easily identify details that are no longer valid save one reference to a now defunct forum. This edition is great resource.