I love it!
I was a bit sceptical at first seeing as there is shimmer in the product, but it actually looks great in my brows and the shimmer is not detectable unless it is applied quite heavily (which I noticed when I use it along my lash line, but it's really beautiful).
I was unsure about what shade as my eyebrow hairs are a charcoal colour but I decided on Incense rather than Echo as I wanted my brows to more closely match my hair colour, which is warmer.
As an eyeliner with the Prep & Prime powder, it does not smudge on me, which is impressive as even powders along my lash line smudge, so overall I am really happy with this product and would definitely repurchase. If only Aleph would make an eyebrow gel!