Pros:
Nine holes in an interesting setting. Park is very narrow, about 150 yards across at the most, with a park-road running down the center.
Holes play out on the right side of the park, then back on the left side of the park.
OB is a serious threat here, as on either side of the park, there is either the Maumee River, or the Canal that runs around the Independence Dam.
Cons:
Holes lack variety, but that's only because it's in a really small park. If you throw RHBH, your shot will always skip toward the road. If you throw LHBH, your shot will always skip toward the water.
Other Thoughts:
Not worth the drive from another area to play. For those visiting Defiance anyhow, bring your discs, it's worth playing. You can put together with the 9-hole course in Bryan Ohio and have a decent day of Disc Golf.