I'd been seeing reviews on this and thought it was worth a try--I love pencils but between age and deep-set eyes, my usual thick-ish line was looking a little heavy. I typically do both waterlines but wanted to try tightlining again, and the cake format looked interesting. Based on reviews, I also bought the LM brush.
Well. The bristles seemed too long to comfortably manage (or maybe I'm a klutz...) so I went to Sephora and got their store-brand tightlining brush. That worked a lot better for me but the secret to getting the liner to work as I'd hoped was to get a 10X mag stand-up mirror. Because seeing what you're doing really, really well was the key, for me, to successful use.
This morning I set out to do a subtle, "no-makeup" look. I smooshed the damp, loaded Sephora brush into the lash roots I could now *see* and created a natural-looking line that accented my brown eyes, brightened my whites, and didn't scream "Hey-I'm wearing eye-liner to the gym!" I did dab some onto my lower waterline but the brush is so tiny, the line just looked like healthy bottom lashes.
I love that this gives a darkness (and no skin-colored gaps) but doesn't take up much eyelid real estate at all. A dusting of MAC Orb and a touch of MAC Wedge and I looked fresh and wide awake.
Another plus: after an hour workout, the LM liner didn't budge--no raccoon rings at all.*
I couldn't get a satisfactory evening-heavy line with this that was close to the smoothness of an indigo-navy UD 24/7 pencil, but for a great daytime look, I'm thrilled.
*Note: I was using Blinc tubing mascara, which may have helped with the lack of raccoon eyes.