Pros:
The design of this course is what separates it from the rest. Every hole is well thought out, and will test your skill. A large number of 2-shot and 3-shot holes that are far more than just "long". The 1-shot holes are varied and well-conceived. Multiple tees are available on every hole, and they have been specially placed to meet various skill levels. The views are incredible.
Edit: I wanted to add something that is often overlooked on courses. On this course, it is nearly impossible to lose a disc. This greatly adds to the "fun" side of the game, as you're dealing with mature trees and open space. No large patches of rough or evergreens. This is really an advantage of similarly "long" and "challenging" courses that have been carved out of dense schule, where you might spend half your time looking for discs.
Cons:
Any cons to this course are minor. The terrain is a little rugged. It is a bit of a walk from the clubhouse. No benches or water like you might find on other courses. Not a problem for me, but others might not like that.
Other Thoughts:
I haven't ever heard of a perfect course, so my 4.5 grade is as good as it gets.