I have very long, thick, fine, blonde hair with loose curls, so I needed a big straightener. It heats up so fast, and I love the temp. lock on it. One feature I loved when I bought it was the closing lock that would keep it closed while storing, but unfortunately that mechanism just broke. It doesn't affect the function at all, but I was bummed since it's less than a year old. That's the only reason I gave it 4 stars. Also, it really does leave your hair super shiny! I would buy this straightener over and over again.