When they say this trail is for expert riders only, they aint just a whistlin' dixie. This trail (at least the first 1.5 miles) is a technical challenge beyond the capabilities of all but the very experienced. It is narrow, very steep, twisty, covered in loose rock, and has plenty of obstructions.
After that though, It's a moderately challenging kick in the pants. It has long sections of fast, flowing downhill; just the right amount of big roots; and a handfull of sharp switchbacks to navigate before it plops you back at your car.
I have ridden/pushed it from the bottom up to where the really steep section starts, and it is a blast. Much of it is rideable, although not all. It's worth it, though.