We sailed on the Carnival Conquest December 2014 over Christmas and needless to say it was below par.
Boat is outdated
Not kept very clean
Kids clubs are horrible if you have tweens.
Shows consist of a person singing with a digital background behind them.
Food was horrible. Not kept properly cooled or heated.
Food staff were not friendly.
Long lines for food.
Took forever getting off the boat at ports because they wanted to take a picture of every person getting off - never been on a ship that was so desperate for money that the tried getting photo opp's getting off the ship.
I don't recommend going on this ship. Maybe their newer ones are better, but Conquest was a dive.