I have this in brown. I am an eyeliner noob you could say; I'm 25 and just now figuring out how to wear eyeliner on my lids (rather than waterline) because I could never get it to look right before. Now I've discovered it just takes lining my upper waterline with a pencil then using the right gel liner & brush combo - and this is it! This formula is excellent. When it comes to gel liners I've tried MAC Fluidline gel (dryer formula, irritates my eyes a little, and wrong tone of brown for me), Revlon Colorstay gel, Wet n Wild gel.. and others I'm forgetting just now. None of them worked for me, but this does. The formula is the creamiest I've used so far, and I think that helps me to apply it much easier and get a more fluid looking line that doesn't look like a 5 year old drew it. It doesn't irritate my eyes. Typical of drugstore products, it is not initially super pigmented - but that's okay, because it's very layerable. If you want it to look pigmented, dark & intense you can easily just apply a second layer (unlike some liners I've used where a second layer just wipes the first layer off).
What's even crazier is I actually like the brush it came with. It allows me to draw both thinner and thicker lines depending on how I hold it and the pressure applied. I'm sure it's not of lasting quality but it doesn't need to be, because you get a new one with each purchase. I'm glad I was too lazy to go grab my MAC brush when I first tried it, or else I'd have thrown the brush away without ever trying it.
Specific to the brown color: It looks much lighter and warmer in the pot than it does on your eyes. I was pleasantly surprised when I put it on and it was a darker, cooler looking brown.