This is overall a good location to stay with some small qualifications. The location is close to major attractions in Waikiki. Check-in procedures are exceptionally clear and very easy to follow as well as very convenient. The host was extremely responsive (within minutes) and very rapidly fixed a problem with the toilet in the room which needed a part replaced.
In terms of drawbacks, there are a few. First, the parking is very expensive, $25 a day, and the parking is not guaranteed availability (i.e. in some cases all spots in the garage will be filled). Also, having two twin beds makes the room very cramped-- it is not as large as it appears in photos. Finally, while the room was superficially clean, it clearly has not been deep-cleaned for a while, so if you are looking for spotless this might not be the room for you. However, the great host, fantastic location, and high-quality check-in procedures as well as decent value (especially without parking expenses) makes this a good location to stay.