I've tried from NARS. It's nice for any eye color. It's smooth, pigmented and has an almost metallic finish.
My swatches don't do it justice. The left side is so beautiful, it has an awesome opalescent effect to it that's very hard to capture in photos.
The right side is a very neutral medium brown. I tried swatching it against MAC satin taupe but they are nothing alike.
Both colors seem slightly boring but they are quite the opposite. If you are a fan of browns this is a must have.