Pros:
This course is a great course to come out and have fun - the elevation is awesome, the rocks are cool, and most holes offer a unique challenge. The course is situated in the middle of nowhere and offers a nice little respite from civilization. The course really isn't difficult, but does have a good fun factor. I would advise the Mason County parks and Leviathan to go along with Flip City.
Cons:
The two finishing holes were incredibly disappointing for such a highly rated course. I am under the impression that 4 to 5 rated courses need to have good finishing holes. The two finishing holes at Flip City just seemed to be thrown in there. It was truly disappointing. Also, no hole really stands out as the signature hole. Courses like Idlewild, Blueberry Hill, etc all have multiple holes that could be classified as signature holes and Flip didn't really have any, except for maybe the 'A' hole. In addition, a few of the short holes were just too short and easy and didn't really offer a challenge. Hole 1 was also nothing special.
Other Thoughts:
Don't take the rating the wrong way - I rated the course a 3, which is a "Good" rating. There is no shame in that. The course offers a great experience but doesn't really offer a challenge. The course only offered one long hole and a the course had a bunch of short ones. Make sure to bring your walking shoes, as this course will tire you out. Overall, the course was a lot of fun but didn't offer the greatest of challenges.
EDIT: I see this has become a big deal in the forums - let me reiterate that I like the course, but I just don't feel that it has what these courses have to offer: Idlewild, Highbridge Courses, Centralia Foundation Course, Ozark Mountain, the top Oregon courses, Holler in the Hills, etc. It's a beautiful course, but it just didn't offer a true challenge. I wasn't even playing that well that day and I shot a 66 (playing all par 3's for 24 holes). The course doesn't set up well as a championship course or a tournament course to me. Hard, championship courses shouldn't get punished, ie Idlewild or Highbridge Gold because they aren't fun.