I'm a 15 handicap, and had heard the course was extremely difficult. It was difficult (I shot a 96) but I honestly expected worse! : ) The course is beautiful, but as one reviewer mentioned, no views of the ocean on the front nine, and few on the back nine.
Advice: I played early morning. Play later in the day. I think the sun will provide more picturesque views of the course.
Take some extra golf balls. You will lose a few!
If possible, ask for Jason as your caddie. He's awesome! Whatever caddie you get, make sure to ask what celebrities he has caddied for. Good conversation.
Avoid playing with members if possible. I was paired with 3 club members/residents of the island. One was an architect originally from Ohio. Great guy! We shared the same caddie. The other two were from across the pond and had a vacation home overlooking the Ocean Course. One immediately asked me if I was a resident. I said I was not (just vacationing) Throughout the round, they continued to express their displeasure at having to be paired with a non-member/non-resident, and a "commoner" at that. Their caddie made sure to make remarks about every errant shot I made, and made every effort to make me feel unwelcomed. Many times, my caddie and I were the only ones left on the green. Once they had putted-out, they walked on to the next hole. I expected better.
One reviewer mentioned that the pro shop had an air that they were doing you a favor by letting you in their house. That is an understatement.
Final Advice: Come with friends. Enjoy the round. Take photos. Keep your scorecard. If you get paired with members like I did, stay in your own game, pretend they don't exist,