You will definitely use the temperature lock

This straightner is great. The only reason I do 4 stars is because it will get extremely hot. Most of the straighteners I've got dont heat up much. This is not the case to this one. There is a temperature lock. I've found that a necessity with this straightner. The brush is great to goes thru my knotted hair easily. I can use it with my wet hair and by the time I'm done its dry. I got another one that my daughter uses she gives this 5 stars and will never use another straightener