Solid place to stay in Waikiki. No frills, but has pretty much everything you need (and you don't want to be holed up in your room in beautiful Hawaii anyway!).
You can't beat the location -- this is our second time staying in this building and we love how convenient it is to everything, from Ala Moana, the beach, local eats, and of course the main Waikiki strip (but without all the hustle and bustle).
The room is small, but expected -- perfectly adequate for a couple, and we even had enough room to comfortably work (wifi is quick too, which is always nice!) and prepare some simple meals. A hot plate would be a nice addition :-)
Shuji was a fantastic host. We had some minor issues during our stay which he addressed quickly and kindly. It's evident he takes great pride in his place and experience for guests, and that goes a loooong way for me!
Overall, with some improvement to attention to detail (which Shuji has graciously noted), we'd absolutely recommend his place to stay.