Pros:
--Concrete tees
--Large very gnarly trees make good guardians
--Free to play
Cons:
--Not the most peaceful venue
Other Thoughts:
Rosland is a nice little park course. If I lived within walking distance, I'd consider myself fortunate and play it quite often. That said, disc golf feels very much like an afterthought here.
The main attractions are a waterpark and the enviable sort of playground I wish was there when I used to play occasionally in RP 50 years ago. In summer, this is a bustling place. Add to that a crosstown freeway running along the 3rd and 4th holes, and the end result is that this isn't an especially serene place to play. If you can catch a round here off-season and during off hours though, you'll enjoy a nice park course playing under the shade (mostly) of large disc-swatting trees.
The walk won't kill you, but this course plays with 1-5 on one side of the waterpark, and 6-9 on the other. The first grouping is semi-open, more dotted with trees than completely beneath them. #3 is a wide open ace run down a hill, but the rest will require some degree of shaping to avoid the guardians. My favorite hole of the second grouping is #9, which offers you a safe, easy par around the trees to the right, but dares you to hit a very narrow gap up the middle to get the birdie.
This isn't one I'll return to necessarily, but I played a couple of rounds here and enjoyed them. If you like your rounds remote and quiet, just be selective about when you visit.