It's a Cream Lip Stain, which describes the consistency very well. The package is sleek and modern, very simple. The product has a slanted doe-foot applicator that I found really nice an precise. The actual lip stain is not runny, but has a creamy consistency that's easy to apply. It has a strong vanilla scent. While the stain applies mildly shiny, it dries to a satin finish. You should keep your mouth open when it dries to make the effect faster and keep the stain applied evenly. When dry, the stain is smudge proof.
I found the stain alone to feel a bit too dry on my lips, so I put regular lip balm on top. This made it a bit more prone to smudging, but still nothing like standard lip stick. During the day (8+ hours) the stain feathered slightly at the corners of my mouth, so using a lip liner (one of the invisible types would be best) might be wise. To remove the stain, you need an oil based make-up remover. Unlike the name states, this product doesn't actually leave a stain on your lips.
+ Easy-to-use colour, suits many skin tones
+ Excellent staying power
+ Can be worn with lip balm on top
+ Stylish package
+ Easy to remove
- Availability, only available at Sephora
- Vanilla scent can be overpowering and lasts quite long