Pros:
-Right by the Huron River
-Never busy
-Open to 10pm, suitable for night golf. I've played later, without harrasment, too. The park mostly gets ignored.
-Baskets in good condition.
-Woods fairways well defined, giving 5 short holes of reasonably challenging finesse golf.
-4 field holes give big arms a chance to spread out a little, providing much larger distances than you see on most 9 holers in the area.
-Scenic, when clean.
Cons:
-Dirt/grass teepads. Or today, mud.
-No signs for the field holes, if you want any idea where to tee off in the field, you'll need a course map. Woods tees easier to find. Short tees are not on the course map, but there is evidence of them existing at some point, and they can be found in the woods. Nonetheless, short tees easy to create in the field, since the holes are wide open.
-Very little intereresting about field shots. Obstacles hardly come into play.
-Park often used during the summer for non-disc golf activities. May render a couple field holes unplayable.
-Trash. Wind blows it in from residential areas on the bad side of Ypsi. Local players don't seem to respect the course, either. Not always bad, but frequently so.
-Burrs. During the right season, there are seas of burdock waiting to stick to your clothes and bag. Clear right now, though.
-Pretty much flat. Two baskets on very small hills, no height to throw off.
Other Thoughts:
This course has a lot going for it. It's got river. It's got space. It has some decent woods area.
It's never going to be a great course though.
It's too open in most of it, and too flat. But mostly, it just has too much competition. In any other area, this would be a serviceable course, and likely would have gotten attention from the local disc golfers to solve its problems. Its worst issue is the lack of teepads. Without a dozen great courses nearby, people would have come together to put concrete down, or at least have played it enough to pack the dirt down and show where they are. As it is, it's a mystery for a lot of it. This course has 5 really nice holes with 2-6, but hole 1 and holes 7-9 have you throwing across empty space with little to modify your approach. So as it stands, you've got very little exciting golf in an area filled with exciting golf in greater concentrations. Unless a giant hill sprouts up, or the park picks up some property on the other side of the river to make some exciting water holes (neither of which are likely to happen) this course just doesn't have the chops to compete with the rest of the Ann Arbor area's outstanding disc golf.
Still, if you're local, and bored, there's 5 good holes here that you probably haven't played.