Pros:
27 holes, three 9-hole loops, each loop starting and ending at the parking lot.
Two tee pads per hole. About half are new/concrete, half old brick or asphalt.
Multiple pin positions
Practice area - two baskets, and open area to loosen-up for drives
Back area of park, i.e. not "competing" with other park patrons.
Requires a wide variety of shots - not a "simple" long-drive-followed-by-moderate-approach-followed-by-reasonable-putt course.
Large yellow flags on to of baskets make them easier to spot.
Favourite hole: #22 - go straight a good distance, then turn right, with the famed cedars waiting to interfere with your disc. You then must approach, via a narrowing opening, the basket set amongst a scattering of trees.
Other Thoughts:
Practically every hole will involve some minor change in elevation - some up, some down, some both
Practically every hole will involve some trees, anywhere from the entire length of the hole, to just affecting a single "stage" (initial drive, secondary drive, approach, or putt).
A very fair balance between in left/right "advantage" holes, some being more extreme than others.
Only a few holes are of the type throw-it-as-far-as-you-can-then-have-a-slight-fade. You will need to throw an an(hyzer) or S-flight on nearly every hole.
One of the top, if not the top, courses in the Baltimore-Washington area. Anyone who lives in say, Laurel, i.e. has a reasonable drive to Seneca, Patapsco, and Rockburn, has it made!
I find the back nine (19-27) to be the easiest, the middle nine (10-18) a bit harder than the front nine. #13/#14, in the back positions, are brutally long (relatively speaking), then after having them wipe you out, you have a long up-slope walk to #15!