I have quite a few dark brown eyeshadows. It's the eye shadow colour I wear most often as I find it the most flattering colour for my dark brown eyes. This is my favourite of them all. It's a neutral dark brown, not too cool, not too warm.
I find that it is this eyeshadow that I grab the most often, esp. when I am pressed for time and can't afford to wander "hmmm, what product shall I use today?".
It's subtle and blends beautifully (according to make-up artists,dark brown is one of the most difficult colours to blend properly) and therefore never looks harsh. It has great staying power. My skin is oily but this shadow stays put. At the end of the day it still looks decent.
The texture is lovely. It's creamy and luxurious. You can layer for extra intensity of colour.
Packaging: a half moon shaped pan in a small square box with a little round mirror. Even the small golden sponge applicator is good (as opposed to most miniature tools that come with make-up)
All, in all, a quality product
NB: make sure you use a good blending brush, such as Laura Mercier's Eye Crease to blend along the crease's edge for a lovely soft and diffused smoky look.