This product is one of those items that sneaks up on you. When I first purchased it I used it solely as a highlighter and although I found the pigmentation impressive, I wasn't a fan of the liquid formulation. Now that I've had this product for about 6 months, it's one of my most used and trusted items. The main reason I love it is because it's so versatile! It can (and should) be used as so much more than a primer! I add one drop to my foundation which adds heaps of luminosity but also means I never worry about caking. I also like to add it to my cream contour, which makes blending a breeze.
The major benefit to this product is the lack of glitter particles. The highlight is incandescent and manages to look natural without any disco ball after-effects.
One thing to note, this product does have a white cast. I'm very pale so I don't mind it, but for any medium to dark skin tones you might find this makes you look a bit ashy.