Schweeeet.
I'll be very interested to hear your impressions of the ride-in-the-snow.
Here in Edmonton, I see fat-bikes way more in the last couple of years than in the past. But, I mostly see them riding hard-pack snow where you don't need a fat-bike.
While intrigued, I have not bit-the-bullet since I'm more of a winter commuter and would rather go x-country skiing than biking for weekend recreation. My route to work takes me both on-road and through some trails. Except during or a day-or-two after a big snowfall, most of the trails are hard-packed by dog-walkers. I did go so far as to buy a new wheel-set last year with 2.3-inch tires on a 35mm rim just for the snow-days... and is still OK for commuting. But that is a far-cry from 4.5 inch tires on a 90mm rim.
So .. have a ton 'o fun and make sure to report back !