The room itself is an amazing studio. I don't think they could do more with the space they have. The shower is awesome. While the parking is in the building behind the Airbnb's building, it's a life saver if you've rented a car as parking in waikiki is very expensive. I wouldn't rent a car taller than a jeep as the garage ceiling is fairly short. Kitchen has a microwave and toaster oven but no stove or oven.
The shower is incredible and James provides a lot of nice personal touches. The decor is great and he provides a cooler and beach items for you to use during your stay. We definitely would stay again and it's one of the best values in waikiki. I wouldn't expect to use the building all that much outside of James' amazing room, but why would you need to ? You're walking distance from. The zoo, the beach and all of the shopping and restaurants in waikiki.