Yeah we used it too and found it helpful. Yes mothers do get to learn eventually what their babies cries mean but its all about gaining the confidence to work out how to get to that point. That's what i found anyway!!! It makes sense to me that a physical problem will cause a physical reaction. I'm quite interested in baby signing too. I kind of dismissed it when I was pg with DD but found she naturally made some signs, so will be following it up if we have another bub.