In brief:
We would stay there again and we recommend Richard's apartment.
Richard is extremely helpful and organised.
The apartment is very small, but the price, the reasonable view on the ocean, the incredibly central location and the overall cleanliness of the apartment, make it definitely a good value for your money.

Host:
Richard is an exquisite person and made us feel at ease seeking help and advice from him from the first contact. He is always around and more than happy to help. He is also rather organised and most of the questions you would have are written on a nice brochure he has printed that awaits you on the table in the kitchen. While this approach is very efficient, it takes away, in my opinion, that human interaction that makes Airbnb a different experience. Especially for people coming from a different country, booking airbnb is not just about the price and the convenience, but it's also about the unique experience in meeting the "local" and having, often simple but insightful, conversations on how people get along with life in this corner of the world. Here the process feels very streamlined and it makes you realise quickly you are one of the seven millions tourists visiting the island during the year. Don't get me wrong, Richard will still make you experience those invaluable conversations, and it's a pleasure to talk to him, you just have to be more proactive in seeking them.

Apartment:
Like in the pictures, bright and well kept but small. You can literally step into the kitchen, into the bathroom or on the side lanai getting out of the bed. If you plan to spend time in the apartment, weight your options carefully. If you are planning to go out and about and stay in only for the shower and the night sleep, this place is for you. To our delightful surprise, other than the usual bathroom towels, the apartment comes with beach towels. If you are traveling with budget airlines which in case of some extra Kgs make you feel like a gold smuggler, it's very convenient not having to waste that extra room/weight on towels.
The view is a plus, you can see Waikiki beach from the bed. You are surrounded by high rise hotels but there is a nice corridor that gives you a beautiful sight of the beach and the ocean.
Bathroom is clean and space efficient.
The bed is just fine. Pillows could be better. But that is just a very subjective matter.
The Air conditioning unit is noisy, we preferred it off at night and relied on the cool night breeze. We were lucky for most of our stay.
The location is just perfect. You are a walk away from most of the Waikiki life and the bus stop is on the other side of the road.

Overall a very good and pleasant experience.
Mahalo Richard