Many reviews downplayed the size of this ship. I disagree.
The smaller size meant less waiting in line for everything. It meant lots of open spaces and open seating and not having to apologize for bumping into someone or slowing someone down who's trying to get around you. It meant being able to speak to someone next to you without also hearing the conversations from the next table over. Lots of quiet spaces to just sit and take in the view. This is a boat for a "Classic" cruise experience.
A lot of reviews talked about problems with sewage or heat. I did not experience any problem with the sewer system (3rd floor interior). Heat was an issue. It seemed the further down you went in the ship, the hotter it was. I know the AC was running in my room, but it just couldn't keep up with the climate. It was comfortable enough to sleep in, but much warmer than I keep my bedroom at home.
Lots of people were laughing because they are even smaller than interior rooms on other ships; I didn't mind, I was never there anyway unless I was asleep.
A/C seemed to be an issue on the whole floor; it was running, but not enough to keep up. I would recommend if you are doing an interior room to get one high on ship