Scores so far are pretty typical US Open first round. Two-under leads with a few guys around par. I watched Tiger and Geoff play 17 and 18 at lunch (in a bar with no sound). While the greens are now doubt treacherous, I got the sense that the defining characteristic of the set up is the rough, which seems just brutal - more so even than the normal Open. Evidently reflects optimal agronomic conditions. May give Tiger something of an edge because he is so strong and can advance the ball further out of the crap.
In any case I will be there tomorrow and will get a better sense of the course and conditions.