Pros:
It's great urban disc golf. With nine baskets and eighteen tees, the course flows well from hole to hole, and it's in a pretty urban park with plenty of amenities. Who ever came up with the idea of putting a course here should be commended, because it fits great in the space. Compared to the other courses in the area, it's the one that has the least chance of losing a disc, being as open as it is, and having no water in play, and overall it's an enjoyable experience.
There are lots of birdie opportunities to be had, if you can hit your lines. A little variety of left, right, and straight holes are represented at Park Circle. Once again, I'll say that the course is a great fit into the available space, and excellent use has been made of the available land, what there is of it.
Cons:
The holes seem repetitive at times due to the course's location around the outside of a great big traffic circle with a park in the middle. I would have also liked a little more variety on the lengths. Most every hole seemed to be about the same distance, and the distances listed on the tee signs were often very wrong. This could have been due to alternate pin positions being in play, but that should also be noted on the signs, if you're going to go to the trouble of putting distances up on a sign. Also, not really a con, just a heads up for those not so navigationally inclined, I missed a hole (6/15) when I went back after six months to play it a second time. I found it a couple days later, the third time through, though.
I was not a fan of the tees. Even though they were concrete, most were too small for my tastes, and many had an "ankle roll waiting to happen" drop off at the front. About two to three more feet of concrete at the rear of the pads would have been great, even if a few of the pads were on the narrow side. One pad was pretty broken up and in rough shape.
You are always playing relatively near a road, not enough to really influence your throw, but near enough to possibly be an issue on a really errant throw. You never have any sense of seclusion, or being out in nature on the course, due to the location, and proximity of the roads.
Other Thoughts:
There were only a couple of benches and trash cans out on the course, and as already mentioned, the tee signs were often less than accurate on the distance. There are restrooms, a playground, baseball fields, picnic tables, and other amenities in the middle of the park, which the course plays around. I would recommend plenty of sunscreen for the warmer months, as open as it is. It's easy to locate, not too far from I-26 or I-526, with lots of convenience stores and fast food nearby.
Random observation: two of the three times I've been there, I've gotten caught waiting on a long, slow train on Montague Avenue, once on the way in and once on the way out.
Park Circle is a nice course, and fun to play. I'm sure I'll end up playing it again at some point, but while it's a good course to hit up if you're in the area, it's not a destination worthy course.