Instruct: Classify a given review into positive or negative sentiment.
Query: Not as wonderful as I thought it would be

I purchased this product and much to my amazement, the dual controls are installed backwards!The control with the service label information is supposed to operate the right side of the bed, the unlabeled control is supposed to operate the left side of the bed. Not so. My side of the bed was too hot, hubby's side was too cold. When we swapped the controls to the opposite of what the directions said, we had the desired results. I purchased this product during the winter months, and needed it too much to send it back to the factory.....at my expense....for repair or replacement. Make sure any electric blanket or warming pad you purchase has at least a 5 year guaranty.