You have to remember also that it isn't just the square footage. The layout has a lot to do with it.
The Miracle "claims" their interior cabins are 185 sq ft....I don't buy it.
We did 7 days in a closet on the Miracle and there is no way it was 185 sq ft.
We do interiors on the Fantasy class very well.
However, on the larger ships....I have not tried again since our Miracle experience.