The caveats to my comments are that I only played it once, and so these comments are more on the order of first impressions rather than a completely thought out critique. I reserve to right to change my opinions in the course of ongoing discussion and seeing the course again. Also, since others have stated the positives they see in the course well, I am listing negative points.
Seemed to me that the routing created a bunch of ski slope or toboggan fairways, almost what folks refer to as goat track stuff, and which really did not use the slopes creatively. Balls seemed to run to the bottom of the fairways, in flat spots for the most part, and therefore the slopes, though visually striking, didn't do anything for the course. Also, I could find very little reason to be on one side of the fairway one most holes aside from being able to see the green, rather than getting a better angle; therefore, I found few choices or risk reward oppportunities that made much sense. Strategic golf to me is not made up of "hit it on the left to see the green, or you have a blind shot," which I found to be a recurring theme on the course.
Many have spoken of the blind shots, which don't bother me, except having basically the same blind tee shot over the crest of a hill repeatedly speaks to a lack of variety. So does having many greens perched up on hillsides, leaving few ground game options (regardless of whether the green is open or covered by a bunker). To me, this is an aerial golf course. And one of the few times the fairway was sloped on a diagonal, there was NO area for the ball to run down the slope and stay in the fairway, so everyone's tee shot ended in the rough.
The Biarritz green may be natural, but the wings slope so much that it looked like basically the only place to put the pin when the greens get to speed is in the swale, which sort of defeats the purpose of the green.
Also, while the greens may have subtle contours, they seemed mostly flat to me, though a few had interesting tiers, which is befitting a course that wants to hold major championships and have the greens run at 12-14. This needs to be reviewed once the greens get decent, but unless you end up on the wrong tier of some greens, I didn't see many putts that will break more than 6 inches or so. Not a selling point to me, but understandable if you want a tournament course.
Finally, for a course being advertised as having moved almost no dirt, some of it looked quite manufactured, especially in the huge rolls in the fairways and some greens perched up (as well as the second green). That's an aesthetice judgment, and totally subjective, but it did seem odd to me.
Obviously, folks who have been there repeatedly have a much better knowledge base to go on, but that's what I thought.