This is a very spacious studio by Honolulu standards. The location is excellent for visiting Waikiki attractions and getting around. Everything was clean and comfortable, and the building is very secure.
The downside of this unit is that there is a lot of street noise. I grew up in New York City so I'm not a stranger to street noise, but it is noisy in this location and the unit is on the side of the building facing a busy avenue. It is what it is - just be aware of that. I recommend bringing good earplugs for sleeping at night. Also, there is only one washer and drier for all the units so sometimes you need to keep checking to see when it's free.
One of the other reviewers wrote that the company that runs this Airbnb is unprofessional or uncaring - I found the opposite. I booked two stays with them and they went out of their way to ensure that I could check into this place directly after checking out of my other one. The communication from the hosts was great and they were prompt to address any concerns and assist.