I've tried a few felt-tip liners and this one if by far my favourite. It's very black, which is exactly what I want in a black eyeliner. The ink is highly pigmented and the tip is quite wet, so it's easy to get a clean, solid line with a single pass. The tip also has just the right amount of flexibility. I had my first one for around 10 months before it started to show signs of drying out. The only negative is that it doesn't dry down instantly like some other liners do, so if you have hooded or similar eyes you have to wait a few seconds after applying it or it may transfer. I can only give it four starts because of that last point, but that's not a dealbreaker to me so I will buy this again.