For the most part this is a very scenic trail and is great fun to ride.
I'd compare it to the back nine at stony. It's not really single track, nor is it true double track.
The start (I start at 4 for easy parking away from camping) has some good rooty technical climbs. There are a few gravel hill climbs and descents. The trail meanders through the woods, then open meadows and back into the woods. You'll pass cool things like the swing bridge and trudge through heavy vegetation as seen here:http://biketubes.blogspot.com/2010/01/m ... etnam.html
Also try Ogemaw hills down the road. You will not be disappointed in either of these trails.