This is basically all of talk therapy condensed into a hundred pages. I have a mixed relationship at best with talk therapy, but I do think it has its useful points, and this is a hell of a cheaper way to get at them than paying for a few hour-long sessions.
The chapter on anger was particularly powerful, and did a good job explaining how to separate anger-the-feeling from its more dramatic manifestations. The chapter on dream analysis, on the other hand, should probably be skipped unless you have a far higher tolerance for woo than I do.