I love the color (electric navy) and it glides on really smoothly. But after 4 hours of a regular work day I had a blue smudgy mess on my cheeks. The next day I tried it with a primer and it stayed put a little better, but I still had some smudging.
This eyeliner is so pretty it's almost worth keeping a compact and a tissue handy to fix smudging and transfer issues. However, do not, under any circumstance, go anywhere near the water with it.