Unlike most liner pens, the applicator is a very fine tip that makes it easy to achieve the sharp point I like when drawing on my winged liner. The flow of product is smooth (so no blobbing or skipping). 

As for wear time, I've put this liner through the ringer, wearing it to work, wedding receptions, and even two workout classes in a row. (Now I know wearing makeup to the gym isn’t a great idea, but when you can only make it to evening gym sessions — and you're always running late to them — something's gotta give.) So the eyeliner fulfilled its tattoo-like indelibility. At the end of my two classes, when my entire face of makeup was on my towel, there was not a trace of black liner to be seen. So I recommend!