I've been the last three years. First year it was nice at home -- near Athens -- so I wore shorts. On top of B Bald it was about 30 degrees, and actually snowed a bit. I nearly died. The next year it rained hard and I got nice and wet. Last year I got sunscreen in my eye, but that's not the fault of the hill.
I mention this just to say be prepared. The weather conditions up there can be very different from the base. The year it was cold there was perhaps a 20 degree difference. Last year it was nice and sunny.
You can go to the top of Brasstown Bald. Basically you park at the bottom on the highway which runs past the road up BB and you can walk up, ride your bike up, or take a shuttle bus up. On foot you can go up to the very top where the finish line is. If you ride your bike up you can only go as far as the parking lot which is one K from the finish line. (Well, you can always leave your bike in the parking lot area and walk up.)
The parking lot area is where the giant Maxxis Tire, signifying one K to go, is located, and also where the big matrix board is located. If you are there you can watch the riders as the race unfolds.
You do miss the finish from there, though you can see it on the board, but watching the battle up Brasstown Bald on the screen beats sitting and waiting for some guys to ride across a line. At least to me. It takes the pros a good long time to ride up so on the board you get to see a great battle. At least the last two years.
Oh, get there early or else you'll have to park a mile or two away from the turn up the mountain.
Oh, no, wait, get there late. real late. I don't need the competition.
Also, crowds have thinned out since Lance quit. A lot of the fans wanted to see him, I believe, and didn't care that much about the actual racing.
Finally, if you do ride your bike up, be very careful riding back down. A guy died last year riding down, and every year people crash and get hauled off to the hospital. The problem is people walk down and the shuttle vans are on the road and you're heading down a very steep, curvy road at 40 mph and suddenly, there's some fat lout in your way (I'm a fat lout, too) and your choice is to die on this side of the road, or that.
All of this said, it's a great day of racing and well worth seeing. Now I shut up.