I've used many different leave-in treatments before and most work well enough, but at the end of the day my hair always feels oily and heavy. I borrowed It's A Ten from my sister to use one day and I love it, and have been using it ever since. I have long straight hair that has a mind of its own (meaning it gets frizzy and static-y all the time) and this tames it very well. Definitely worth the money.