Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Not the best execution

Some of Coby's products work flawlessly. Others were designed to frustrate. This one's smack in the middle. It's hard to insert and remove from the cigarette lighter socket in my Ford. And it picks up the static hum from the car's electrical system, giving my iPod the equivalent sound of an FM station broadcasting from 60 miles away. Nice try, Coby, but I'm disappointed in the execution.