Taking cara babies guide

Has anyone purchased the taking cara babies newborn guide? I’m wondering if it’s worth it! Just looking for feedback on if it worked for you or not. I’ve been nursing my baby to sleep and I found out she has a way of teaching babies to put themselves to sleep which blows my mind. I can’t imagine putting my baby down awake for him to fall asleep on his own (7 weeks) but that would be amazing! If you liked or disliked her guide please comment your feedback! :)