Right, so this is not in the same league as Costa which is a cruise ship. Was wondering if anyone had experience with this one specific.
The Costa is similar to Norwegian, in my opinion. However, we took it in the Caribbean, not in Europe.
In my experience, the American ships have no smoking in most places, but the Costa (perhaps more so in Europe),
has a lot of smoking in the main areas, lobbies and balconies. They also have all announcements and "fire drlls" in seven languages and
there is tons of jabbering in all tongues, in loudness and attitudes, and lots of people of all ages.
That obviously happens in every city, but when you are sharing a ship for a week, everyone is up close with you in the hallways, elevators, mealtimes, "boats to shore", etc.. It's a lot of fun -- and you can tune out whatever you want.
In my experience, Celebrity and newer ships are very classy, elegant, and people are respectful while still having a great time together.
P.S. If you are taking Costa via Kosherica to the Greek Isles/Mediterranean, it will be amazing!