Brow highlights are life changing, let me tell ya. I used to put a shadow for a brow highlight religiously, then got lazy with it because I was all about my inner corner highlight. Now the brow highlight is back in action and this month (and every month) I'm using the Anastasia Brow Duo in Camille/Sand.
The Bad: Each side used separately isn't cute. It needs to be used together. If not, it either doesn't blend right, or is too light/intense.
The Good: When blended, it makes your brows look 10 times better and more professional. I also suggest using it before the brows are filled in to minimize mess.
Overall, I blimmin love this stuff and I'm hooked, get it if you love that highlight anywhere you can get it.