I like this CD and I use it as the basis of a guided meditation nearly every day. I find the meditation useful for relaxation and healing, but, so far, I haven't had any great revelations about prior lives. The book and CD are not for everyone.
I believe that Dr. Weiss himself would agree that someone -- especially someone with serious problems -- who is able to obtain the help of a therapist who is skilled in regression techniques would likely be better off with therapy. But, alas, not everyone is able to do so.
People who are looking for a in-depth examination of reincarnation, from a psychiatrist's point of view, should read Dr. Weiss's other books first. That will give the reader an opportunity to decide if this book/CD might be useful.
The book is really just a longish guide to the method of regression through a guided meditation.
The guided meditation on the CD is indeed fairly short. It takes me about half-hour from start to finish to do the meditation. That works for me, as I do the meditation once a day, sometimes twice a day.
For those who are looking for a very long guided meditation, this CD won't suit you.
It seems to me that this is a rather gentle way for people to connect with the unconscious. The goal is to increase awareness, not to dodge responsibility for what one has done in this life by casting blame on some other life.
What you get with this book is a guide to the methods, and merits, of a guided meditation for relaxation, healing, and past-life regression, plus the CD with the meditation. That's it. It has been a good value from my point of view, but it won't suit everybody's needs.