I may be able to answer your questions from when I sailed on the Panorama.
Only other Havana guests can walk past your patio (the gate was locked) We were in 5204 I think and there was only one cabin past us. In a week we saw only our neighbors
In the Havana area it is was Havana guests so noise and traffic past the balcony.
I loved this area. You have Ocean Plaza close by for snacks and breakfast! If I booked the Panorama or the Vista this is where I would want to be!