If you want smoky eyes without needing to carry around more than a single shadow this is the best way to go; you can create the look just by using the various shades all in this one eyeshadow. Or you can just use your brush to swirl the tones over your lids and get highlight and shines in different hues the way I like to use this shadow I love the way it layers in different degrees and has a slight shine to it that goes great with a dark mascara and eyeliner. For a monotone eye I have never found a better shadow or an easier one to use; everything I need is in one place and I can use a single brush to get that shaded look. With a primer I've had no trouble with it lasting all day, without one it still lasts a while but it does fade some on my eyelids by the end of the day so it is better with a primer under it. I love to use this eyeshadow and then do a brightly colored eyeliner to make the different shades of gray stand out more.