Instruct: Classify Amazon reviews into positive or negative sentiment
Query: It WORKS!

We have twins - 8 months old now - and we used the Happiest Baby methods we learned from this DVD ***all the time*** during their first months of life. We swaddled them until around 6 months old. Dr. Karp's methods really worked for our little ones and made those first hectic months a bit easier. I definitely recommend this DVD.