We loved this unit. The description of the property was perfect and this part of the development was so quiet. The view was amazing. It was everything we hoped for. Directions to and instructions about the unit were accurate and appreciated.
The unit doesn't have central air but there is a portable A/C unit in the bedroom and the ceiling fans in all the rooms help. The portable unit is loud and we elected run the A/C during the day and to just run the fan at night. We were comfortable. Kauai can get very humid when the trade winds are not blowing. If you can't tolerate some humidity inside the unit...this may not be the best for you.
I would go back in a second. The location, the decor and the quietness far outweigh the A/C situation.