I dropped into it yesterday just to see what it was about. That first drop was harry but after that there were some decent turns to be had. When you get around the corner for the first time there are a few options. All I kept thinking was to keep up speed so I did not have to climb out.
You dont have to carry that much speed so dont kill yourself around the bend. It was a bumped up mess.
I would give it a b. It is not long and you pop right back onto the trail not far from where you went in. Good diversion from the norm.