I love this method! My husband got this book as a gift and it saved me. I’ve used it with all five of my boys. I have been reading some negative reviews stating that it’s schedule feeing. That is incorrect, it’s a combo between demand feeding and clock feeding. It’s parent led feeding. So if it’s earlier than usual the parent tries other remedies to make sure the baby is actually hungry, and not wet, or needs to be burped, ext. If baby is still fussy than you feed. It’s all about how mom feels is right. None of my babies failed to thrive, they’ve all been right where they need to none or above. All my sons have no nap time issues or bedtime issues. I love this book and I gift it every time I go to a baby shower. My boys are 15, 9, 7, 2, and 7 months old. I highly recommend this book.