Dan,
The Addington's appeal for me lies in the strength of its holes. Though I'm sure it must have some, the 1st holds little interest. However, after that, hole after hole after hole all the way home is very good (2nd, 3rd, 4th) to unique as they play around/over ravines (7th, 9th, 10th, 12th, 16th, 17th) to all-world (13th) with no weakness or let up. The 18th may be considered a conventional golf hole as its over the only flat bit of property but thanks to Abercromby's routing over the rest of the ruggged property, holes 2 through 17 laser themselves into one's memory bank forever.
Hole for hole, there are very few inland courses (15 or less) in the world that can stack up with The Addington.
Cheers,