Honua Kai is an interesting property with a bit of an identity crisis. There's a definite condo vibe, which is nice. Owner-specific amenities such as upgraded cooking equipment, S&P, oil, and the cooler were extremely useful. Communication and responsiveness with the property managers was exceptional, they even rushed some bbq tools over when we noticed them missing just before we were about to cook dinner late on a Sunday. Really comfortable bedding, even the sofa bed unfolded in a cool and kinda funky way. The nana doors really opened up the place to the large lanai which gave us tons of room to spread out.
The resort itself has a pretty decent shop on site (with anticipated pricing ofc) and of course the Duke's restaurant, which is great. Otherwise, it has more of a DIY vibe, not a lot of organised activities and service compared to the Westin next-door (for example, we paid twice as much for a private cabana at the Honua Kai pool and got half the service compared to the Westin).
I was a bit concerned about the location of the unit on the property situated directly over the lobby with a lanai that was open to all of the other units on that floor, but in fact it turned out to be a bonus. The lanai was super spacious, there wasn't a lot of noise from the lobby, and the sunrise was exceptional over the mountains.
Would definitely book again.