I exchanged (II) into WKORV (2 bedroom) in April 2007 and have another 2 bedroom reserved next month.
I don't have Starwood preference, and my Marriotts rarely see this property available. In the past couple of weeks there have been many weeks available for exchange (Maui & Kauai) but I think most of them have now been taken. There was availability for both South & North with several check-in days (Fri, Sat. & Sun.) I was surprised because I've never seen so many Westin Maui or Kauai weeks at one time available for an II exchange.
I could have booked either the South or North property, but I liked the South location when I stayed there so I decided to take that in exchange again. The units were very nice.