Makoto was super responsive and very helpful! Really appreciate that.

As for the condo itself, it is a conveniently-located one and well-maintained despite in a rather oldish building.
It was clean and equipped with most stuff you'd need.

The cons however were that it is not the quietest condo. You can clearly hear noises from outside so if you are a light sleeper, this might be a negative point for you..
No air con in the living room (only fans) and the inside can be rather warm. The air con in the bedroom is also noisy so not good for a light sleeper.

Overall, I think it is a good value accommodation in Waikiki, esp. if you can compromise on the cons I mentioned above.