Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Kathy Smith is the best! This video is amazing--A must have!

I have heard the craze about Tae Bo and I have tried the videos (they are not great). This video by Kathy Smith blows them all away -- it's terrific! True to form, Kathy's video is safe and effective. She is such a good instructor -- she made me feel confortable doing the workout while having fun. I wasn't worried about injuries because she shows you how to do the workout as a beginner as well as at an advanced level. The routine is a real fat burner too. The production is interesting and not "too over the top", and the music kept me motivated. I recommend this workout for anyone -- even if you thought kick boxing was "not your cup of tea". Try it, you won't be sorry! I have been doing workout videos at home for 10 years and I've tried them all. Kathy Smith is truly the best!