Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Disappointed

These wipers are a huge disappointment. I put them on this summer. Sitting at a stoplight, they do a great job of wiping the windshield. But when you really need them, while driving in the rain, they lift off the windshield at speeds above 40 MPH.Now that it is winter, they freeze up the same or worse than a standard metal frame.I'm not sure what the advantage of these wipers is...save your money and stick with traditional wipers.