Yes it's a new ship but MSC has no excuse not have a full trained staff aboard. Lines are long for everything from dining to service. Food is il prepared old and cold.
We had purchased the extra dining package that includes Eataly, Butchers Cut and Kaito Sushi Bar. Kaito was the best and Eataly was good but the Butcher needs to get real steaks and a real steak chef, McDonald's gives you more beef on a Big Mac than on MSC set meal.
Our stateroom was hot, shower water pressure was constantly changing.
We ordered breakfast room service and it took 45 minutes, of course it was luke warm.
Do not bother complaining as they are to overwhelmed and it our cruises case had just given up!
We left the ship on the fourth day with luggage in hand and flew to Rome. Before leaving we asked for our 20 Euro per day tip back and met with much resistance and Italian attitude.
Maybe they will get things worked out but I would advise all not to book until they do.