Pros:
Kansas City's original disc golf course. While it's obviously an older park-style course just remember that this course is less than a year younger than the Aviar itself. There have been improvements over time to keep the course from getting stuck in the '80s, and those help it stand up to some of the newer designs.
A concrete tee with a color tee sign at each. Every hole has a DD Veteran in a shorter position, and a MachIII in a longer position. I say "a" position because each hole has a minimum of three pin positions, and some have as many as seven (Hole 8). Four holes (4, 8, 10, and 18) have a third basket, Hole 8's rotates through the three spots on the island green, while the other three are set in the respective hole's longest positions.
The course keeps away from other park users well on most holes (the road on 13/14 and tennis courts on 18 being the exception).
Hidden challenge near some of the greens: Holes 1-7 all play near the drop-off to the Down Under course, and there are several pins (1D/E, 2C, 3C, 4E, 5D, 7B) that are right near the precipice (this also comes up in Cons). Add to this the hard dogleg greens on 11, and the green up the stairs on 14 (you read it right) and you have much more than a round of put-your-brain-in-neutral-and-get-birdies.
The tunnel of 3 remains on of my favorite holes in the area. To the shorter pins it's a fairly simple toss, to the longer two it's a well-controlled fairway driver shot that needs to stop short of the edge of the woods or you're in for a rough time. Precise tee shots are also necessary on 4, 8, 9, 12, 15, and 16 with their tree gaps from the tee,
Cons:
While having multiple pin placements is nice, some don't change the course that much. Several holes are just a cluster of baskets and your drive will be much the same shape no matter where the basket sits
While the challenge of playing near the drop-off to Down Under adds value, it also adds danger to those playing down there. No, they're not mole people, they just like more technical golf.
Some of the older equipment is beat to tar. Some pads are missing corners (14). Several of the MachIIIs have popped welds and the ultra-long on 18 is destined for the scrap metal pile at some point soon.
There are several uninspired holes (1, 2, 10, 17) that feel stuck in place to make it 18 holes. There was limited space to work with, but these come up lacking when compared to some of the better holes (3, 14).
This course is always busy since it's near the Dynamic Discs store. This has the negative effect of clogging up the fairways, tee pads, and parking lot. Which leads into parking; parking here sucks. Not enough parking for the volume of park users on a weekend and the spaces that are there are extremely small.
Since the park is so close to the store it's frequented by newer players, which is a good thing, but you may end up stuck behind a really, really slow group for a few holes which is a bad thing. This course is also a common spot for larger groups and even some mob golf. Fortunately most groups will have an experienced player or two that will make sure you get played through.
Other Thoughts:
Having a park with two courses is nice, but the skill gap between the two leaves Up Top extremely busy, which is the main detractor for an otherwise decent course. As I tell people coming to KC, play Up Top for a classic, easier round; play Down Under for a difficult, wooded round; and either way get some Joe's BBQ down the street when you're done.