i bought mine for POW. I think the sites says that they are a park specific ski that can also hack grooms, when traverling to POW and an odd run through the park on the way home.
I wouldnt buy them as a one ski quiver inless you come from a POW resort. Slighly thinner skies will be more adapted to all moutain terrain.
As I said i bought these for Powder and i have my invaders for park.
But then its all personal taste. Some ppl love fat skis eg. Pollard!