Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Bob Harper is a Beast!

This is an amazing workout! I like it because it is really concentrated weight lifting, and as I'm interested in using heavier weights, that really works for me. Bob is really funny and encouraging, and I feel sore instantly afterwards. The only drawback, for me, is that it is really long, slightly over an hour with warm up and cool down. With two small children, that is really pushing it for me, but it is well worth the time spent!