We swapped into a timeshare at the Pono Kai for a week in May, 2013. The place was clean, the staff was friendly, everything was very average. Except for the bathroom. It was clean, but small and not well suited to more than one couple.
To me, the Pono Kai fits somewhere a resort and a condo. There is no "special" feel to it. We didn't have high expectations going in, and anded up having a very good time. If you adjust your expectations, and don't pay too much, the Pono Kai may be a good value for you.