Very small, but comfortable as long as you keep organized. Lots of room under the bed and in the closet to store luggage and clothes. Very convenient location with a quick walk to the Hilton Hawaiian Village portion of Waikiki Beach. For the price, do not expect anything glamorous in the room, but if you are looking to travel on a budget and aren't too picky, this studio condo will do wonders.
Rob has parking in the building that you can add-on. We rented a car for part of our week stay and it was super convenient having our own parking spot.