Pros:
Almost none, other than you are playing disc golf, albeit on a poor course. Some holes are OK, but some are downright unplayable.
Cons:
Not well maintained. Winds all over the park and crosses walking paths many times, forcing you to wait long periods of time. I just plain gave up waiting for all the walkers on some holes. When not crossing the path, you are throwing near pavillions, horse barns, ball fields, and people - downright unsafe. Many of the holes away from the people seem unplayable to me, with no discernible fiarway. The walk from 11 to 12 is monstrous, and not marked at all, next hole is on complete other side of park. Dirt / grass tees. In my opinion this course would need a total redesign before I would go back. If you are looking for a place to play near Alpharetta, drive over to East Roswell Park, its far superior.
Other Thoughts:
The only really bad course I have found in metro ATL. Too many people, too close to other park activities, and poor holes, but hey you're playing disc golf. After my last, frustrating (waiting for people), and incomplete round, I won't go back.