Well, we just booked 4 nights in the Nai'a/Naupaka Suite for next summer. This is our points dump, as we arranged it that our reservations will basically empty our HHonors accounts. Unless something changes with the HH program, I can't see trying to gain more points in the future. Most of our future focus will be on Hyatt/SPG properties.
Not many reviews on these suites, but I did find one excellent review over at tugbbs, which is the timeshare owners group forum. I think my kids will like the idea of dolphins right off the back patio.