I'm trying more liquid liners these days and I do love a good bright teal or blue, I recall emilynoel83 saying the Milani Infinite Liquid liners had great staying power so I figured I'd give one a try.
The shade is called Infinite (original!), I wore it in this FOTD with Maybelline Color Tattoo in Tough as Taupe. The formula is thick and if applied heavily it can take some time to dry down. It's shiny when wet but dries matte.
The brush isn't terribly fine but I didn't have too much of a problem with and to be honest, I want it to be quite thick when doing a bright featured liner like this.
It dried down to something like L'Oreal Lineur Intense does for me as well, it won't smudge or fade but especially after 10-12 hours it can flake a bit. My natural oils break down makeup pretty well, it came off completely (except for a bit smudged into my lashes, whoops) when washing my face in the shower.
Overall, I like it quite a lot! Relatively easy to use, great color payoff, long-wearing but not too hard to remove.