I have a good amount of it from when I worked there. I got it on a screaming discount because Sportsman's owns the brand. At full retail, it's grossly overpriced. Generic, mediocre fits and cuts on the clothes, and poor breathability. Their "puffy" layers are garbage, zero insulation value whatsoever. Their only semi-worthwhile offering is their pants, but they don't breathe at all, so they would end up being relegated to late season. But even then, for less money, you can get vastly superior pants from King's, which are also available at Sportsman's.
If you can get the Killik on a sale or discount, it's pretty ok. But it's not worth the price of admission at full retail.