Pros:
There are a lot of good disc golf holes at Stewart Pond. The grass covered open areas are broken up nicely by stands of mature trees, so the lines are generous but not vacuous. Pins will often be placed with many trees in close proximity. There are a couple of holes that will drop downhill off the tee a fair amount. Several are on the lengthy side, with only one par 4.
The tees are concrete, and provide a nice good sized space to launch your drives. There are tee signs, and the Innova baskets were holding up well. The layout is not too hard to follow for the most part. If you're short on time, you can play a nine hole loop by skipping to hole 14 after finishing hole 4. The grass was mowed nicely, perhaps stunted from a dry summer.
There are only four holes under 300', so you will need to get good distance with accurate placement, or make some longer putts if you want to get way under par. The quality of holes is consistently good, none would qualify as boring to me.
Hole 4 is fun, with a long and open downhill drive, and the pin set near some large trees on a sloping hillside. I liked hole 6, which plays along the crest of a low berm with an early tree dead center and scattered trees and brush to either side. There is a canal with thick brush on the banks to the right of hole eleven that will put you in danger of losing a disc if you pull it that direction.
Cons:
The parking situation isn't really clear, Google maps got me close but I parked on the street and walked around the barrier to a gap in the fence next to the second tee. If you look at the linked map, you can see the actual parking area next to the metal building.
I joined a couple of other players that I also ran into at Dexter Park earlier that day, and we missed the the for 12 after putting out on hole eleven. It isn't far but 13 is in sight and we just began moving that way. There is a long walk between 13 and 14, but it is along a clear walking path, and you will see it very near the fifth tee on the front nine.
Poison Oak is out there, so be careful before going into the rough to retrieve that disc.
Other Thoughts:
Stewart Pond is a fine quality course. Well equipped, and maintenance was good when I visited. Seemed to be fairly clean also, I don't remember seeing noticeable litter issues.
There aren't many highly technical, woodsy throws, but shaping the tee shot correctly is important on most of the holes. The distance will put added importance on a good short game to keep you around par.
I was unable to make any birdies at all on my round. My final score was a +4 (59). I took 4 bogies and made par on 14 holes. Eugene is a fun town to visit, and Stewart Pond/Dexter Park combo is a fun day of disc golfing.