I bought this to replace a similar one that had the bristles broken off from age and bumping against another surface while too hot. I really like this one because it heats on both sides. I wish it had a manual shut off on it, though. This really works well for my hair and doesn't tangle like round brush ones do.
You can use it to get just smoothness and a slight turn under on my straight hair or hold in place a little longer and tighter and get curls.