This eyeliner is my go to! Although it's my first from UD, I'll be getting more. The color and texture is so wonderful. It's a great alternative to black or brown because it helps wake up my hazel eyes. It blends very well and stays in place throughout the day.
The color is perfect for a neutral/light eye or using it heavily for a darker look. It doesn't overpower my very pale skin if I'm just wearing eyeliner and mascara (too dark of black looks unnatural on me). I can imagine it would look gorgeous on someone very tan as well!
Stash is an amazing dark khaki green with a slight gold shimmer, it goes on so smoothly and blends well on application but once it's dried it sticks! For me, green eyed and pale, it's a great alternative to brown eyeliner which always tends to make me look like I've been crying.