I did, was signed up for the 16 but with the date change I had some scheduling conflicts with the start time, so I did the 8 instead.
I don't actually have a fat bike (I rented one for the race) so I am far from an expert on what conditions are supposed to be like, but at least from my opinion it was VERY hard, lots of climbing (according to my garmin, 1617 feet of climbing in 9.2 miles), that would have been tough on it's own, but what made it really hard was that on one of the long extended climbs, the snow was fairly deep and not really packed down, and it was almost impossible to actually pedal, so it was a real slog.
So... not sure if it was a good course or not, but just sharing my experience.
It's definitely a cool spot and I am glad that they are doing fat biking.
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