Pros:
Decent 9 hole course in a well-manicured township park. Innova Disc Catchers are featured here, and each hole presents a nice cement tee pad, numbered wooden post and colored sign with distance and preferred flight path. Easy to navigate. Hole 3 (a hyzer over a small building) and hole 8 (neat little tunnel shot through trees to the basket) stand out. Reasonable opportunity for success here.
Cons:
Course is not very challenging for the advanced player. Pedestrians and picnickers can be a factor when throwing. Several holes feature flight paths over park roadways. Some low-lying parts of the course are frequently marshy and wet. Hole 4's sign does not match up with the actual basket placement.
Other Thoughts:
Willow Mill Park is a nice little 9-holer ideally suited for the recreational player or the person trying to work on their short game. One can play this course with putters and/or a good mid-range disc. The designer did an excellent job with the layout given the relatively small size of this park. Distances are manageable, and most every hole presents a birdie opportunity or ace run.
I was impressed that despite being a small, recreational venue, Willow Mill had at least 10 people playing the course on the Saturday I was there. If you live within 20-30 minutes and take it for what it is, Willow Mill is a worthwhile trip and a pleasant experience.