Pros:
Good variety of holes: short to long, left to right, tight to open, flat to hilly.
Well maintained: mowed, little to no trash, lost-and-found list, attempts for dry path navigating everywhere, visible on-going improvements
Amenities: some holes have two baskets or two pads, benches, trash cans, decent navigation signage, good tee pads, excellent baskets, plenty of parking, port-a-johns on site.
Layout: easy to navigate thanks to signage, score cards, and helpful manager.
Design: makes best use of land, water/wetlands present challenges on many holes, some difficult holes with simple holes in between, nothing repetitive.
Safety: not many holes felt like a concern from neighboring holes. No other activities are present on the course, but disc golf.
Location: Easy to find, sits at one of Michigan's most notorious intersections, 8 mile and Telegraph road.
Cons:
Signage: majority of holes have basic info on signs, length, number, par. This is problem when many holes have blind basket positions or hidden hazards.
Land: the majority of the course sits in a low lying area which floods frequently.
One hole sits at the base of a retaining wall which at the top of it is a parking lot. It's easy to tell that the snow banks of this parking lot are pushed over the wall, thus creating a trash situation from the melting snow banks(it's kind of a stretch, but this was the only spot where litter was evident.)
Other Thoughts:
All and all, I was very pleased with Bonnie Brooks and will return as soon as the opportunity presents itself. The daily fee/annual fee is more than reasonable. Many memorable shots are found here with 'almost' no holes feeling like they were forced or a filler hole. The course manager was very friendly and informative with plenty gear for sale.
Bonnie Brooks represents a crucial step in MI disc golf, pay-to-play on a 'non' park grounds. Meaning: this is somebodies investment, not just a recreational activity.
Quality signs will bump my score to 4.5
More landscaping and better wetland control will make it a 5.0