Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Great tool

Despite keeping my hair straight, I still use a curling iron instead of a flat iron (never could get those things to work right) to even out my natural waves. I had one of these that recently had the little spring break, rendering it useless, so I was thrilled to find it on Amazon for a good price (compared to the price I paid at the store previously.) The barrel is longer than average, which is nice, and it really does seem to help with frizz and flyaways.