I have sailed on the Carnival Valour in the past, and the experience from beginning to end was great.  Sorry to hear you did not have the same.  We just sailed the Carnival Conquest, that is a ship you do NOT want to go on.  I would have to say the best Carnival Cruise ship I have ever sailed on was the Carnival Destiny before they changed the name of the ship.  From staff to entertainment to food, everything was GREAT.  I guess you can get a bad cruise on any Cruise Line, however, some just seem to be worse than others.  Carnival offered us no compensation for the cruise we just came back from, and the problems started on embarkation, and ended on debarkation.