THE GOOD: beautiful, spacious rooms, quiet, and an unbeatable location right at the very centre of Naha. Wonderful amenities (although you will struggle to get any out of those bottles).
If you like having people treat you like a princess, this will be great.
THE NOT SO GOOD:
Many staff standing around, watching your every move; will hurry to the elevator before you to open the doors.
If you prefer having a home away from home, a relaxing space, rather than feel like a closely watched guest in a strict person's place, you may feel a bit uncomfortable as I did. Even a look at the, what I think would be a nice lobby from glancing at it, was difficult as there was always someone trying to run to the elevator to open the door, open some door for me, or ask me if I needed something.
The strictness pertains to everything: eg the restaurant I wanted to go was written as Last Order will be at 20:00, so I went at 19:50 but gut just looked as his watch and I was told it's in fact too late.