My Karmas work great as an all-mountain ripper, though at 165 pounds the 177's are a but much to manage in shitty snow.
The ski is very stiff with tons of pop, but the swing weight isn't anything special so they're not as nimble in the air as a lot of skis.  I can pull 360's effortlessly on the 1080's and Chronics I demoed, but it's a concious process and more work on the Karmas, though part of that is also that I don't have the Karmas center-mounted.
The Karma really is an all-mountain ski for blending backcountry, groomers, and a dose of freestyle.  However if you want a ski that's more freestyle oriented, from Volkl, then the Dogen is your ski.
-Nathan