We were very disappointed in our cruise, the food was poor with no buffet option in the evening (closed at 3 or 4 pm daily only a salad bar and pizza in the evening). Food in the restaurant was bland, service slow, but no choice if you wanted more than a salad!
Costa's strange and inconsiderate no smoking/smoking policy allowed people to smoke INSIDE the ship - in all the main bars and lounges - saying that there were no-smoking tables was ridiculous as people smoking in an enclosed area pollutes the entire room. On top of this the genuien (small) no smoking lounge and bar were out of bounds, taken over for Costa (to see future cruises, i.e. The Isolobella lounge) - or only sometimes available - the very small Isolobella bar. All the rest were open and adjoining smoking areas (the Cigar bar open to the non smoking Piano bar!) Even the card room, which we enjoyed during the day, was closed at night and turned into a photo studio.
On deck, smokers could smoke anywhere on the left/port side of the ship - that was fine, but many 'strayed' so that sometimes (as the ship was fulll) it took a while to find a smoke free place. Staff on deck hard to find, no one bothering to remind people who were smoking in non smoking areas that it was 'not allowed'.
Cabin was very clean, comfortable, cabin staff excellent. Lot of noise from the coridors could have been helped by a 'Reminder' in the daily sheet about walking quietly after midnight !