This star of this house is the upstairs balcony, which has majestic views of the mountains to the south, often with clouds tumbling over and around them and spontaneous rainbows throughout the day, and featured a great view to the west of the sunset every evening. We also used both the tennis court and pool which are conveniently just steps from the door. There is also a hot tub but we it was quite warm the whole time we were there and no one was interested. There was plenty of space for our party of eight.
We checked nearly every beach in the area: Puu Poa Beach, Hideaway Beach, Wylie's Beach/Anini Beach, Kalihikai Beach. Unfortunately Hanalei was tricky to access due to a recent landslide and traffic being escorted in only one direction at a time, so we ended up skipping that area entirely. Hideaway was everyone's favorite (coral, fish, and so many turtles!) but the hike down verges on being a climb, so not recommended for everyone (there is a sign warning about this as well).
It's worth reminding that the house is not air conditioned, so open windows and fans were key to keeping cool, but people not used to lounging or sleeping in warm and humid conditions may have a rough time.
I would definitely consider booking this place again if I stayed in Kauai with a similarly sized party. We were very sad to leave after just four nights.