Instruct: Classify Amazon reviews into positive or negative sentiment
Query: very helpful!

My two yr old was a preemie and has delayed speech.He is very picky and i mean very picky as far as what he will sit and actually watch and when he sees this video coming on he starts smiling and clapping im so pleased with this video and it actually does make a difference even after just him watching it a few times i am not exaggerating, and it has some great tips.the video is fairly long not one of those 10 min quick videos.thx!