For someone who was always terrible at using anything other than an eyeliner pencil, this is incredibly easy to use! I like that it's fat because it gives me a better grip and for some reason it's easier to do your top liner. This is super pigmented and the color never fades; this will last all day. What freaks me out sometimes is when I get this in my eye by accident, it leaves like a black could on the white of my eye that I immediately wipe away. Definitely keep this out of eyes, it can be a little irritating. I will also say that this does bleed a little. Like you won't get a perfect straight line, for some reason it bleeds as you apply it but not a lot. Other than that, this is the only thing I use to do my top liner. Very easy!