Pros:
I'm brand spanking new to disc golf, the addition of this course to my hometown got me started and I'll tell you what, I'm glad of it. I've really gotten hooked on the sport fast (and already spent too much money on discs). So, this is definitely from a beginner's perspective:
I love the variety in the holes. The first 12 (with the exception of #4 and maybe #5) take you through fairly heavy wooded areas, especially #2. Most of the holes are straight shots, but there's enough obstruction that you need to be creative, or at least pay attention to where you're throwing.
For a new player, there were a few holes that were very difficult. I found #9 and #11 the most challenging. My favorite holes though are #8 and #6. The former is simply gorgeous, there's definitely a "tunnel of trees" as the other review said, and it is quite tranquil. It requires a very straight shot to get any sort of decent score on it. #6 is just plain fun. It's the least straight of all the holes and it's behind what looks like will be a beautiful garden come spring with a few low hanging trees around.
Once you get through to #12, everything else is pretty much unobstructed by more than a couple mature trees. I feel like the change from wooded to open field happens at just the right time to keep you from getting bored/frustrated. So, the last six holes are a pleasure, you really get to just let loose and throw your discs good and hard. Of these, I think #14 is my favorite. The hole is between two mature trees next to the tennis courts (high fence, no worries about interrupting a tennis match) and gives a little bit of a putting challenge after a good throw.
Cons:
I'm new, and sometimes my hand decides to throw my disc somewhere entirely crazy. This was a problem on #17 and #18 as they are both near a road and parked cars. Fortunately I didn't hit anything, but it would be very easy to with one wild throw. Also, on some of the holes (especially #7... I think) I threw into some brambles. It wasn't much fun retrieving those.
The tee for #7 (I think?) is behind a shed, out of sight. It took me 2 playthroughs to actually find it. #9 has the same problem... it's waaaay off down a path, not intuitive at all. Once you find it, it makes sense but finding it that first time can be tough.
I feel like the holes are all a little bit short. I don't have much trouble getting a hole in 4 shots (5 if I have a fit of beginner-itis), and my side-arm throw doesn't get nearly the distance that I know it could. It takes me 2 throws to cover the entire distance of the longest hole, and I know my throw is weak. I may change my mind as I get better though, I don't really know.
Other Thoughts:
All in all, I feel really lucky to have had this my first course. It's great! I hope others enjoy it as much as I have.