Yusuke's apartment was a great find. It is just as he has described it. It is every bit as good as the photos indicate with comfortable contemporary furniture and all the necessary amenities. It is spacious, very clean, light and sunny with a pleasant outlook over the pool area and views down to Waikiki. The Waikiki Banyan complex isn't new (like a number of similar complexes in Waikiki) but it is clean and tidy and in a great position. It is well set up for families with plenty of outdoor space around the clean pool.
Yusuke replied to emails promptly and was available for advice or help if needed. His instructions are easy to follow. We paid an extra fee so we could access early in the morning. We appreciated this after an overnight flight.
By the way, in spite of what you might have read, I would consider his apartment to be definitely a one bedroom and not a studio.