This is my least favorite section of the AT that I've done so far. It was flat for the first 12 miles. The problem is, that you are never out of earshot of a road. A lot of the hiking is through corn fields and cow pastures. The last two miles are in the woods and were nice. It was mostly up hill as I recall.
Double check your maps. I believe camping is not permitted for 15 miles or so along the trail before Darlington Shelter.
A lot of this section is in the open, so it got hot in the sun in August. Be sure to take some sun screen.
This was pretty neat. This wooden foot bridge must have been at least a quarter mile long, maybe longer. It was maybe 5-6 feet off the ground to avoid the swampy ground below. It's worthing hiking this section just to see this bridge.
This was a very nice shelter. There were four bunks, and plenty of floor space. The outhouse was huge and clean. In addition to the shelter, there was a lot of open space for tents. This site would accommodate a large group.