Diana was great at checking in through the week and offering prompt replies. The place worked well for two adult couples. Laundry is a must when in Hawaii, and the machines here modern and high capacity, with detergent available for your use.
Princeville was a good home-base for our stay on the island, especially if your plans include activities in the North Island.
I would however consider spending at least one or two nights south island during the trip simply to avoid the drive in traffic getting to Poipu or Waimea on multiple days.