Instruct: Classify Amazon reviews into positive or negative sentiment
Query: one major flaw

At first this looked like a great purchase. The retractable cord saved on clutter in the car and I could easily remove the cord from the charger and connect it to my computer at work. Seemed like a very innovative design.However... after about one week of casual use the cord started pulling out of the base where it connects to the ipod. The sound/power hasn't started cutting out yet, but I can already see exposed wires. I guess the retractable mechanism pulls a little too hard on the cord. Perhaps I got a bum unit, but I'm going to return mine for another type of charger which can stand up to more than a week's worth of use.