Tom,
It plays as 6W. The television wouldn't show the incredible slope in the green from back to front. Watching the Heineken live over the past three years, I've seen many approach shots spin off the green and roll 15-20 yards back down the hill, a la 9 at Augusta. In the hey day of quick greens at RM, the 70's and 80's, putting off the green in tournaments wasn't uncommon.
The drive is as thrilling as any on the sandbelt - you choose what line to take over some wild bunkering and scrub. If the pin is back left, the best drive is left close to the bunkers, and with the pin on the right, you drive further along to the left side of the fairway. Attacking a left hole location is very dicey, because should you miss short or long, it is incredibly difficult to save par. Obviously, this makes positioning of the drive so important.
What a great hole. But is 15 (17W) even better?