There were four of us traveling so we had two balcony cabins side by side. The divider between their balconies could be opened but only when in port. This was a bit of a disappointment but the configuration of the dividers didn't allow for the door to be completely out of the way. It was mostly designed for staff access rather than having four people sit and be in each other's company. There are cabins however with adjoining doors between them, and you must request these when booking. The cabin was quite spacious and almost a large as a mini suite on Princess ships. There was plenty of storage, a nice desk and a loveseat with a small table. As return guests (and Costa Club members) we were treated to a bowl of fruit and a welcome back note. The only complaint I would have is that there was a slight but unpleasant odor in our room, for the first half of the cruise. It dissipated gradually each day.
The itinerary for this particular cruise was La Romana DR, Catalina Island DR, Tortola BVI, Castries St Lucia, Pointe-a-pitre Guadeloupe, Saint John's Antigua, and St. Maarten. We mostly took beach days but we also walked around most of the port cities. Catalina Island is normally just a beach day and Costa has the beach to itself. A BBQ is served along with musical entertainment and the beach chairs are included. Catalina Island is one our very favorite beaches and we look forward to returning one day. Tortola BVI has upgraded the shopping experience since we were last there in 2005 and they now offer many small booths within walking distance from the ship. St Lucia offers shopping at the port and many varied excursions. There are plenty of taxis waiting to take you for much less than a Costa arranged excursion and it's a beautiful island that I would recommend seeing. The beaches are among our favorites in St Lucia as well. Guadeloupe was the only stop where there was very little to do within walking distance of the pier, so we only left the ship for a few minutes and then spent the day by the pool. We chose a 4-hour beach day in Antigua but for 51 Euros each ($150.00 for the 4 of us) we got a 1-hour drive to Half moon bay. A 2-hour stay and another 1-hour drive back to the ship followed. The beach doesn't have facilities and a chair rental was $6.00 each but they only had about 12 chairs so we couldn't get one. This was a complete rip-off by Costa and I've learned greatly about pre-booking excursions. Its best to do it without the ship and just watch your timing so you don't miss the departure. St. Maarten is of course a great shopping experience. The water taxi takes you directly from the pier to the beach and from there; you can shop till you drop. We spent a little time at one of the casinos down town but were unsuccessful at winning the cruise fare back. The final day is a half-day at sea and then we returned to the port of La Romana for our hotel stay at the Iberostar Hacienda.
One of the best things about cruising with Costa for us is the food. Every dinner was exceptional and the deserts were wonderful. We would like to see a little more seafood like Princess offers but when cruising Italian style, we have come to expect a superb cuisine all around. Costa Atlantica is a wonderful ship and we found the staff to be friendly and helpful. (Unlike some of the reviews we have read) I highly recommend you try it for a wonderful cruise experience with great value.