I read that book. It was actually the first one I read after DB. My C is an Imago therapist so that is pretty much their textbook. It was a hard read for me. My feelings about it are probably on par with your feelings about PM.
I would LOVE to hear what you think about it so do your reading and I expect a report soon!
GH
P.S. LOTS of "childhood affects adult relationships" in this one. Very "old-school" psychology.