Best thing we love about all Vista class ships is definitely the Havana area!
Other things I enjoyed include
The deck areas at the very front area of the ship, I think it’s decks 6 and 7. There always seemed to be a sign that they were closed but most often we could still go through the door. Great views and don’t think a lot of people know about it as we usually were the only ones there.
2nd floor of the Lido deck pool area, the cushy chairs in the front row are a great way to enjoy the pool action if you can snag one.
Specialty restaurants, Jiji Asian, was our favorite but I thought they were all good. Even in their post-COVID condition
Ocean Plaza, the band that played there most nights was really good
Pig and Anchor Bloody Mary
Worst thing about all the Vista class is definitely the theatre. I am not neurotic about having to have the best seat but some of the seats in the balcony are super obstructed. And the chairs in the bottom level are just bad idea along with whatever device they claim to be a “cup holder”.