Instruct: Classify Amazon reviews into positive or negative sentiment
Query: DO NOT BUY this curling iron!

I bought this curling iron, allured by the claim of the tourmaline technology being better for my hair. I have used multiple curling irons and curlers throughout the years, but have never had the horrible experience I've had with this one. It is apparently WAY too hot, even on the lowest setting. In one week of use, my hair has gone to it's worst shape ever. I have lost patches of hair, and every time I use this iron, my hair feels "crunchy." I am never using it again, while I still have some hair left on my head, and will be looking for another one ASAP.