I have tried many many liquid liners as they are my favorite type of liner to use for a winged-out look. I was a big fan of the Kat Von D Tattoo liner so when I saw that Kat Von D released the new "Ink" liquid liners in tons of fun colors and promised the black to be more intense then ever, I jumped on it and immediately bought it.
The Kat Von D Ink liner differs from the Tattoo liner in that it has a felt tip rather than a brush tip. The felt tip is just as thin and precise as the brush tip of the Tattoo liner, albeit a lot more stiff. That added stiffness really ensures the most precise winged out liner application. It's a bit easier to use than the Tattoo liner because of that. I love it and I think you will find it really helpful if you're just getting started with liquid liner.
However, it falls a bit short for me formula-wise. It's not blacker than the Tattoo liner which is what I was expecting since it claims to be "ultra black" and it dries out quicker. I find myself having to close the lid of the liner and shake the product up again when moving from one eye to the other because it dries so quickly. It also claims to be waterproof and it wasn't. My eyes are watery due to allergies and this did not withstand my allergy tears. I still think the applicator is great and worth a try if you struggle with liquid liner. It's a great learning tool and a bit easier to use than the Kat Von D Tattoo liner if you're a beginner.
Sometimes I still find myself reaching for my trusty L'Oreal Carbon Black liquid liner (note: get the one with brush tip, the felt tip one sucks) to go over the line and make it darker. The combination of the two is really nice since I can use the Kat Von D Ink liner tip as a guide to create the best shape and then fill in with the L'Oreal liner to rev up the intensity. I wish I didn't have to use two products for my perfect winged liner look but looks like until I find my HG liquid liner, I will have to make do with what I have :)
What is your favorite way to do winged liner?