I love this product, I does justice and it actually works! I have been using this for years and I have yet to find a product in the same price range that works the same or even better than this stick.
It does not smudge, water proof,super black so you don't need to reapply and its long wearing, it does not crack after a few hours of wearing unlike the Avon Glimmer Stick.
The only pet peeve I have is having to take off the product, you need a proper eye make remover to get it off without it leaving your entire eye black. for me that's a small thing and I will carry on using this eye liner for many moons to come.

I would recommend:
MAC eye makeup remover
Gatineau Eye makeup remover
which for me works really well to remove any eye liners that wont budge