Instruct: Classify the given review into positive or negative sentiment.
Query: It worked so well for 5 months, but then died

I bought this in July, and it worked so well. 5 months later, the light on the unit started acting up. It stayed on even after I switched the straightener off. One week later, the unit will not turn on.I thought I took decent care of this product: I unplugged the straightener after every use, waited for it to cool down, and then stored without wrapping the cord tightly. So I don't know if mine was a one-off problem. I never dropped it, I can't hear anything that sounds like it is loose. I think I will try another brand.