This is a golden pink, and frankly perfect for green eyes. Unlike the prevous reviewer, I do not find it quite as much like Snatch by UN. It is not as dark by far, and not as sparkly. It has more of a sheen. The color payoff is the regular undependable MAC - this one you need to really dip your brush in very, very well before patting on the lid. But I can't imagine anyone with green or even blue eyes not looking good in this. I have green eyes and only wear pinks, lavenders and blue/lavenders on the lid, this is it for making my eyes pop, so I have many versions of pink. This one is a keeper. For me, Snatch just too dark and glitzy.
Pink Frontier is a warm-pink, golden shimmer and in some lights looks a bit coral. Very similar to Urban Decay's Scratch, which I also love.
The finish is a frost, color payoff is on the sheer side, just like Scratch. You can build it up, of course, it's buttery, easily blendable and I experienced no fallout.
Lasts a good 8 hours without primer, but I did find that the UD "Scratch" lasted longer in terms to color fading. Applied in a light wash of color, the two are extremely similar with pink frontier obviously being a bit more pink.
.Below is a picture comparing Pink Frontier (left) and Scratch (right). I did build up the color to show the slight difference between the two.