Pros:
Rubber tee pads are in great condition and level. Signs at every whole. Mach 3 baskets are in good condition and usually easy to see off the tee pad. There's a map at the front of the course. The course is also in a GREAT location, just over the Rochester city line in a beautiful suburban park with tons of elevation to work with. The grass is well mowed and trees are trimmed back from ground to about 10 feet to keep wooded shots challenging without being unfair. Navigation is easy, next tees are mostly visible from the preceding hole's basket. The course flows well and describes a loop around the park. There are some benches and trash cans available. Restrooms with running water are also on site. The course is quite challenging; mature trees, lots of elevation and some tricky lines as well. Lots of variety in distance too with some totally legitimate par fours. Ellison park is also home to two of the most exciting disc golf holes I've ever thrown: Hole 7 is an epic 500+ foot downhill throw and Hole 16 is a challenging toss down three tiers of landscape with very unforgiving vegetation. The uphill holes here are absolutely relentless. The city has a very strong disc golf culture.
Cons:
Some tee pads are a little small. The course can be a little tight, as it's easy to send a wild shot onto a neighboring fairway. A few blind shots from the tee, but 17 is the only one where it's really hard to know what to throw at.
Other Thoughts:
While many may argue that Parma is a better course than Ellison, I must say the opposite. This is definitely among my favorites, and it's so great that it's so close to the city. And two of my favorite holes ever are here. As far as I'm concerned, Ellison is the top of the line in the 585.