My littlest is a year now, but the title of this post caught my eye.
I have had one positive CNM hospital birth, and 2 UCs -- one very beautiful UC (the second uc, third child) and one not-so-beautiful UC. I credit BFW for the gentle beauty of my third birth. I didn't like LOTS of the book, and only skimmed for parts I found relevant, and never even did most of the exercises, but I'll share my experience.
I bfed through the latter two pgs, and found it incredibly painful. The first time, I'd sort of hold my breath while I nursed, and had a very painful, difficult (still unassisted, uncomplicated, but psychologically difficult) birth. During my most recent pg, I practiced the BFW technique, learning to relax, practicing when nursing. This time, I had dinner, saw a movie, picked up my kids, and slept several hours while laboring. I got out of bed at 3:30 am, got the tub, oils, music, Christmas lights, and supplies ready, had the baby at 4:45, still talking between contractions, and got back in bed at 6:30. Sure, there was pain, but not mind-rending pain. I was relaxed; I felt in-control; I finally understood women who said, "It was very intense, but not painful." The ability to relax my pelvic floor and surrender to the contractions was AMAZING. That's the value I found in the book, which I too found extremely condescending in many ways. I spent a lot of time skipping over stuff, skimming through, but there was some great weight that came with the book as well; good information I didn't get from Ina May Gaskin or Sheila Kitzinger or Dick Grantley Read or the rest.
I hope that helps answer your question of whether it's worth reading. IMO, yes.