-nice little park that isn't usually too busy or full of other park users
-nice design and hole diversity for a 9-hole; holes aren't super long on the standard layout, but aren't overly easy for intermediate players
-good use of the park's mature trees throughout, and its hilly terrain (holes 6-8)
-new baskets

Some favorites:
-3 has a tricky wooded line and well placed basket
-5 is a good slight uphill with some initial branches to miss
-6 uses some hilly terrain well; the shot isn't nearly as simple as it looks from the tee
-8 is the most open, a downhill shot that isn't overly simple because there always seems to be a crosswind
-9 is a nice shot through some trees, favoring a RHBH turnover over a RHFH

-some of the concrete tees are too small (3 is especially bad)
-park has a playground; as I said, it's not usually busy but be careful on holes 1, 4, and 5
-only 9 holes... so play it again!

This is a nice little course that warrants a visit by anyone routinely in the OKC area. It's rarely busy (at least when I've been), so plan on playing it twice or even playing some safari holes to mix things up. None of the holes are incredibly long, but most players will at least break out some fairway drivers (esp. holes 2, 5), at least to hit lines if not for their full distance potential. I really like the course for practice, as it encourages accuracy and smooth form. The baskets are great for putting practice, and the holes consistently require good golf lines as opposed to wide open hyzers. It makes for a fun one disc round or equally fun "empty your whole bag on every hole" round.

The setting is a big plus. Tuttle has plenty of nice country, and you'll enjoy a tranquil afternoon/morning in the park as well as a fairly relaxed disc golf round. As a side note, there's a big screech owl that lives somewhere between holes 2 and 3, so enjoy if that's your thing.

Rating discussion: 2.5 for "Decent/Typical" sounds about right for this nice little course. Having just nine solid but routine holes is the main factor preventing a higher rating. The main room for improvement would be the tee pads. As others have said, this course really maximizes its use of the park and is quite polished as is. Thanks!