Ssen's place is in a fabulous location and it was a very enjoyable stay there. It's within walking distance to shopping, Waikiki Beach (although too far to walk if you have tons of beach equipment). It's right across from a park and almost right across from the Hilton Hawaiian Village. It is clean and well-appointed.
The parking was definitely nice since it's hard to find in Honolulu during peak times. If you do have a car, keep in mind that the deck does not have 24/7 access. It's open from 6:00 AM until 11:00 PM. So if you plan to leave really early, or plan to get back late, you will need to make other arrangements. Also, there is no elevator in the parking deck, and the exit to the street is through a construction area at the moment.
Ssen is available to answer questions whenever you need her. Highly recommend staying at her lovely place.