I got this along with the Lashes in a vault haul. Packaging is sleek black with silver writing. Fine tip applicator, formula is super black. Takes about a min to set down once applied, depending on how thick the line is. I'm not great at liquid liner so was already challenged before I started.
It does its job well enough though I feel like this doesn't last all that long. Whether that is due to the liner not being magnetised enough or the lash magnets im not sure. Alternatively you could just use it as a liner without the lashes.
As you need it for the lashes I suppose I would repurchase but at that price i'm a bit hesitant. I'd probably wait till it was on sale.