Instruct: Classify Amazon reviews into positive or negative sentiment
Query: The only DVD spin bike work out you will ever need.

I love this DVD. I wish I had only purchased this one DVD and saved my money on all the others. I love her attitude and you work hard. This DVD is designed so that you can make each workout your own by using segments from flats, intervals and hills. Choose which segments you want to use depending on your level. Or, just workout to the full workout for intervals, flats or hills. It is a smart format. Love, love, love it.