I have been using this eyeliner for several years. When I had first switched to it from a pencil liner, it took some getting used to: applying liquid eyeliner is a little different, and I had to re-train myself. You need to have a steady hand. However, I liked it right away. The small tip allows to draw a very thin line. You can make it thicker as well if you want, but I normally don't, because then the line stands out too much for my taste. The lines quickly dry up and last pretty much all day without smearing. The waterproof feature, which I find rather important, works well. I have worn this makeup on rainy days, and it stays on just fine. It stood the test of a swimming pool as well (without diving; going under water does affect the lines, making them smudge, but a few sprinkles on your face would not do any harm).