My experience at Tokyo Dining was wonderful! It is above the department store on the side closest to the Illuminations/lagoon...(the other side is Tepan Edo.) I don't recall being limited as to what we could order...We ordered the grilled food: Salmon, Beef, accompanied by some steamed veg.
I have read threads with others getting Bento boxes, sushi combinations etc.
You will not see polite service like it anywhere else on Disney property! It is quiet and serene. Clean, spare decore, and wonderful traditional Japanese service.