This is an amazing place to stay. William is a great guy and very knowledgeable of the area and outdoor activities to do (hiking, beaches, etc). He recommended me the Koko Head and Makapuu hikes; amazing views! William is definitely an awesome host and I highly recommend him.
The moment I arrived to Hawaii Kai, I felt welcome. The neighbourhood is quiet and clean, with a suburban feel (something I really like). William met me in the parking lot and showed me to his home. He explained how to access to the townhouse and the room. He also showed me the parking spot for my car.
The room is just like the pictures; clean, comfortable, bright, spacious and with great air circulation (I usually sleep with AC, but here I didn't need it) The bed is delightful and very comfortable.
There is a small shopping mall at around a 5-minute drive with a grocery store, pharmacy and a great coffee shop.