Pros:
Interesting location (starts out near a highway overpass, but quickly goes into deep woods), very convenient to downtown Ann Arbor, which is awesome.
The park itself is really pretty, since it runs along the Huron River, but there are no water holes, so there's no real risk of losing a disc.
Holes are clever at times, forcing you to really think about how to throw - high precision is needed at times.
Even though it's a smaller 9 hole course, there are a couple of holes you can get a nice long drive out of.
Each hole has three tee pads, each with well thought out positions and distances.
Cons:
[Update] In its second year, the course has softened up a ton, and is much more playable than it was when I first wrote this review, last year.
Last year there was shattered wood everywhere, since they had just created the course.
This year - much nicer.
[End Update]
Finally, none of the holes have par marked on them. I understand some people always play a hole as a three, but many recreational golfers enjoy comparing themselves to a more realistic 3-5 par. In my opinion, if you play the red tee pad, you should use par 3 for every hole. If you play white or blue (not a huge difference), then use the amateur pars I've entered in the Hole Info section. Given the dense woods on almost every hole, I think they're fair.
Other Thoughts:
No drinking fountain or water source nearby. No stores nearby to stop at, either. Bring bug spray, too.