Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Excellent hair iron!

I love this straightening iron. It heats really fast. It has a temperature dial and can get hotter than most flat irons. Hair stays straight longer than with any other iron I have used. My sister-in-law, my Aunt and one of my friends also own this and they all love it. My daughter is also getting her own Hai Stik straightening iron for Christmas, because she is tired of sharing Mom's.