Any mountain, any day, hella fun.
With a like "One" a board better be able to deliver, and let me assure you, the Rossignol One Magtek does indeed deliver. I am positive you could take this board to any mountain, on any day, in any conditions and have a blast riding it. The Magne-Traction edges keep you locked in and leaving trenches in even the gnarliest of ice but somehow avoid feeling catchy while playing around in softer snow. The Amptek camber provides awesome stability at face melting speeds and keeps you floating through "the lightest snow on earth" and "Pacific Northwest Concrete" alike. With a year like we've been having (2011-2012) the amount of time I've spent in the park has been pretty high and I have been continually impressed with the One's feel on both large booters and smaller more playful features.
I've ridden plenty of super $$$ boards and can honestly say this is a better pick, both for your wallet and your experience on the mountain. Truly a "quiver killer" board that can take you from gnarly peaks to gnarly parks all in the same run.