Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great expectations, poor presentation

The only good thing I can say about this product besides the aggressive advertising effort, is that it has the perfect size cup for a single serve drink.As I was happily putting my protein drink together, I turned it over to start blending. All I heard was a whirring sound.When I removed the cup - I saw that the driver bit - the part the turns the blades around was all worn out and busted.All these cups and serving pitchers, and colored lids, and cups and all the accessories - was worth nothing.I cant recommend this product - it has a very limited life span. Less than a year if you use it 3-4x a week.Won't buy it again.