I have a disabled adult daughter who had studied Japanese at the U of Illinois and ever since had wanted to visit Japan. I chose a cruise as I knew the bathroom facilities in the accessible cabins would fit her needs. I took a chance and did 4 nights in Tokyo first and this worked out very well. I used a company, Inside Japan, and highly recommend them.
This was my 14th Princess cruise. My disappointment was that for all intents and purposes we were on a Caribbean cruise. Yes, there were a fair number of Japanese and Japanese food available, but that was it. My wife said she could not find the first Japanese item in the gift shop. Entertainment was very good, but the same as usual. It would seem that Princess would want to feature some Asian culture. Nothing in the ship's decor said Asia and this ship I believe stays in that market all the time.
When I spoke with a Princess customer relations persons after the cruise, she said that the customer base thought it was too much Asian. Thinking to myself, why would someone travel 6000 or so miles across the Pacific or come from Australia to take a Caribbean cruise?