Pros:
I found Mingus to be a fun little course, with a number of uncommon elements that make this a memorable round.
Its only a short jaunt off 101, but several turns and a narrow dirt road access, as well as a surrounding neighborhood elevated above the park, provide few clues to its location.
The vegetation is interior coastal rain forest--tall, extremely full firs, cedars and alders, with bunched ferns, moss, and mushrooms, but very little open space. The narrow valley and steep hillsides are naturally terraced by the endless winter rains and the clumping of vegetation, giving it an exotic, Tolkienesque air, as if you were treading the ancient stairs of forest giants.
Lightwise, its incredibly shaded, necessitating a sunny mid-day for a visually reasonable round. The ferns and other pockets of dense undergrowth might provide some disc-hunting time for the unwary. Except at tee #1 I saw no signs of structures or human intervention at all.
No drivers needed, but you'll use every type of throw you're capable of to stay in small lanes and avoid vegetation. Did I mention there are no fairways here?
I did see a few walkers/dogs, but the park seems too small and consistently wet for partiers/homeless. A honeybucket was at the parking lot, though a 5-minute walk SE through the park will bring you to a public restroom and drinking fountain near the small lake.
This is the most challenging course between Newport and Brookings, though I'd consider Buffington a worthy stop, too.
Cons:
With only 9 baskets, and the 10-18 tees barely different from the first 9, its better played as a 9er.
If its overcast/raining, it'll be too dim to play effectively, and the walks up/down will be very slippery.
The signage was minimal and the baskets unnumbered, but the throws are short and easily scouted.
No benches, but with the eternal damp, you probably wouldn't want to sit anyways.
Other Thoughts:
Closest stores/eateries are south on Hwy 101. Winsor DGC is just a mile or two north and is longer and less occluded, but with more confusing routing and slightly duller play.