Pros:
Nice Innova baskets.
Very very well kept park.
Water fountains along the course.
Cons:
Pretty much everything, it's a waste of 9 good Discatcher baskets. I think they could've put the course elsewhere in Wyandotte and had great success.
During the spring/summer it's nearly impossible to play in the afternoon and evening. The chance of injuring an innocent bystander is extremely high.
As mentioned by others the bike/walk path goes right through the course. There are three (IIRC) baseball diamonds which if in use draw lots of people that easily interfere. The skatepark is a huge downer for me, it's always packed in the summer with skaters. Which is great for them, but is really unfortunate that the disc golf course is so close..
Other Thoughts:
I've played the course 3.5 times all well before noon and have only seen one other golfer. I unfortunately had to cut one round short due to a truck aimlessly driving around the course (park maintenance I assume).
I don't like the course, makes me nervous with how many people could possibly get injured. It's not very playable in the afternoon due to all the people.
If you're in the area and it's not in the afternoon give it a shot. I'd suggest going right down Sibley to Seitz Middle School to play Riverview Grasslands though.