The Beach Villas at Ko Olina are on the Honu Lagoon, the best of the 4 lagoons in Ko Olina. To the north, the Disney resort is as crowded and packed with screaming children as you'd imagine, compounded by having to share their lagoon with the Four Seasons. To the south, the Marriott manages to fill an entire lagoon on their own. Honu Lagoon, by contrast, is idyllic with plenty of chairs and umbrellas and clamshell cabana beds that are only pulled out and placed on the beach when rented leaving loads of space to stretch out and enjoy the seaside. One beach bar at the resort is sufficient in spite of management understaffing. Live music serenades the sunsets. We never felt over-crowded, except when we ventured to the other resorts.
The condo had plenty of space for our family of 3 adult couples (six in total), although the two sharing the twin beds that were turned into a king complained about it being slightly less comfortable than a proper king bed. The kitchen was sufficiently well stocked to prepare our Thanksgiving feast. My favourite thing about the condo was how the living room opened right onto the lanai with patio doors that disappear into the walls. The pool and ocean are down a quick flight of stairs just outside the front door, but you can toss errant pool balls back into the water from the lanai. Ko Olani has the convenience of proximity to Honolulu without feeling like you're stuck in the city, and there's a lovely shopping area within walking distance. Loved it!