This was our fourth cruise on Costa, but our first on the Atlantica. It was also our first cruise in a suite, as we always had a balcony stateroom before. The check-in process was not much different from others, even though we were told we would have priority embarkation. As we found out, that only applies after you have waited in the line to go through security. Only then were we directed to a priority line, which was considerably shorter than the general embarkation. Once aboard the ship, we were pleased with the stateroom and happy to find a bottle of chilled sparkling wine waiting for us. In addition to the regular room steward, we also had a butler, who proved to be invaluable during the cruise. He took care of our every wish and was very attentive, which was not the case of the room steward. The main dining room proved to be mediocre at best, with lukewarm food, a very limited menu, and long waiting times between courses. What few shows we saw were only average. The main problem with our cruise was the air conditioning in our cabin. It was too warm from the very first day and even though we complained, it was never properly repaired. The maintenance people came up daily, but never got it cool in the room. On the next to last day of the cruise, the ventilation system for our entire corridor shut down for a few hours and it was extremely hot in the staterooms. Guest services on the ship was notified and had representatives in our cabin for two straight days and assured us that they would notify their home office of the problem. After the cruise, I wrote a letter to Guest Services in Hollywood, Florida. Their response was that they acknowledged that we had had a problem that was not resolved during the cruise and that we had been inconvienenced, but they offered no compensation whatsoever.