STAY HERE! This was a vacation saver for us... on our vacation, we migrated from the North Shore (which experienced 28in of rain in 24 hours) to the dryer Poipu and wish we did this sooner! I can't say enough incredible things... The space is HUGE - very spacious and airy. Good air flow so the lack of AC is not a problem. It felt like we were in a 5 star hotel it was so clean. Also, Poipu beach is literally STEPS outside of the property (not the apartment itself, but the complex). Definitely would recommend that you stay here.
Things to note: we left the kitchen light on accidentally on our last night and woke up to dead gnats on the kitchen floor... Not sure how they got into the house since all the doors and windows were closed. But not a problem!