I've only played it once, but I would agree with the 6 rating. Incredible land, some interesting holes, but at least my recollection is that it does not really play like a links, more like a very firm inland course. I recall needing to fly the ball into the greens on many or most holes.
Additionally, the only thing I remember about the seaside holes is the incredible view on a beautiful day. Definitely play it if you are there but play as often as you can on the Old.