Staying at Denice's property was one of the best AirBNB experiences I have had. Everything in the ad is as-described, or better. Check-in with the front desk was a breeze. Having a dedicated parking spot is excellent, although it's a bit of a tight squeeze if you have a large car. The villa itself was spotless and has everything that you need waiting for you. Access to the pools, beach, and nearby restaurants are very convenient once you learn the layout of the property.
I have been to Oahu several times, but this was my first time staying in Ko Olina. I don't think I would stay in another part of the island again. It's secluded enough that you aren't fighting through mobs of tourists to enjoy the beach, but is a quick walk or drive to a lot of great restaurants and attractions.