Pros:
You're on Nantucket, so there's a good chance it's summer and your rode a bike here. So you're in a good mood.
This is a course in a forest, but it doesn't feel like any forest I've seen in the Northeast. The trees are predominantly coastal pines. They are hearty trees twisted by the wind, and they smell great. If you dropped me into this course blindfolded, I would have guessed from the scent that I was in the Black Hills of South Dakota or maybe the Rockies somewhere.
Every hole (with one or two exceptions) has two tee rubber pads. It's a course designed by John Houck, so there are multiple lines to the baskets with realistic landing zones. The variety of length is pretty dramatic, ranging from 178' to 868'. They're all good. The short ones did include a few ace runs, and the long ones are multi-shot tests that keep you from blasting your drive willy nilly. You need to give yourself a second shot.
I can't tell how this course came to be, because the fairways are beautifully carved out of dense forest. While the rough is really rough, the fairways are pristine. There are clumps of trees that define the throwing lanes, but otherwise the fairways are wide and grassy (the ground looked *nothing* like the brown pictures on this site; it was very lush).
Oh, and the flat, grassy fairways give us in the Northwest a chance at a shot we really don't get to throw much: the roller. I tried to resurrect my roller game with disastrous results. Fortunately those shots didn't count. Ahem.
Navigation was good. I consulted the map only once or twice and would have survived without it.
Cons:
There is no elevation here at all.
The rough is about as bad as it gets. The fairways are wide, but it's windy here. Watch where your disc goes. If you throw a bomb and can't narrow your landing area to within 20', you might never find your disc.
It felt like the short holes got clumped into groups, so you played a few of them consecutively. I'm guessing this was a necessity given course constrains, but I do wish they were spread out a bit.
While all of the holes are good, there isn't any that stick out in my mind as mouth watering. The best courses have a few holes that you'd love another crack at. I'm always up for a second round, but I can't say after my first round I was dying to play this one again.
Other Thoughts:
The CDC looks at Lyme disease diagnoses and likely cases, and Nantucket County came in #1. In the country. I wore pants and sprayed a lot of Off Deep Woods, and I didn't find any ticks. But take precautions. It's not hard to prevent, but don't be cavalier about it.
I had been told by a few people that this was the second best course in Massachusetts, so my expectations might have been a little high. It's not, and the rating on this course is a little high. Still, this is a great course that absolutely maximized the terrain.
I spent the day riding around the island here and at Cisco Brewery, and it was a memorable day. Bringing a car over is preposterously expensive, but getting here by foot, renting a bike, and making up island limericks is pretty reasonable. It makes for a great summer day.