OK I read the first book and though I am very aware about the strong opponents to it I was not as offended. Putting a baby on a schedule is not a horrible act that should be punished by death. Babies actually thrive by schedules. I do however see the reason so many people were upset, the way the book puts it it promotes strict scheduling. However people must remember that books are to be used as a guideline, nothing replaces your own common sense and mothering instinct.
Anyway since I wasn't too bothered by the first book I bought the second book. I was APPALLED by the second book. As it encourages you to slap a child under a year old. Or encourages you to let a child scream in a playpen so they can learn to play alone. Slapping a child's hand at an age when exploration is so important will lead to discouragement of exploration and thus will hurt their ability to learn from their environment. Redirection or adjusting the atmosphere is a much better approach. Besides don't children learn through example so wouldn't hitting a child at such an impressionable age teach them to hit? And why can't a learn to play by themselves gradually? I mean don't we "wean" babies from the breast or bottle and "wean" children into the real world, why can't we "wean" them toward independence. Besides your child is only young for so long, why not spend time with them instead, in 15 years they will certainly not be screaming when you leave the room. These are just 2 examples of things I found to be less than up to my standards of child care. However if you agree with these 2 techniques you would enjoy the book as most of the other techniques used fall into the same style of parenting.
Basically I found the techniques used in this book to be cruel and wouldn't recommend the book.