Instruct: Classify a given Amazon review into positive or negative sentiment.
Query: Terrible design

I purchased this curling iron at a salon. Almost from the first use, I became aware of an obvious--horrible--design flaw: the handle for opening the curling iron is mostly made of flexible metal, so that with repeated use, the handle bends down until you can no longer open the iron. Each time this happens, the handle must be bent back up, which is extremely frustrating. Obviously, after many repetitions, the handle finally breaks off. I just duct-taped my broken handle so I don't burn myself, and I am now looking for another brand. Verdict: truly awful design.