I am a big fan of the wing, and am in search of the holy grail of eyeliner - waterproof, smudge proof and black as the night. My everyday go to is the Nyx Epic Ink Liner but I saw this one and thought I'd give it a try since it's so reasonably priced.
The pen nib is sharp, hard and precise, a little too sharp in fact. The pigment is awful, it goes on very thinly and is dry. I shook it, kept it upside down but still that nib remained pretty dry. I could not use that super sharp nib for my wing because I could not get a dark enough line onto my lid. I went over it about 4 times and still it was pretty poor. what's even worse, is that this liner smudges and just slide off my face...after an hour my wings were no more >.< Honestly just avoid and try the epic ink instead.