Just came upon this thread and you seemed so sincere in your search for information, I thought I would add my opinion.
We did take a TA, but in November and should have known better. November in the North Atlantic can be bad and it was. The weather was horrible. We were in the back of the ship and should have known better so I'm not blaming anyone for our blunders in booking this trip. BUT we have been on rough seas before but I haven't gotten sick until this one. The ship felt like it was rolling. Everything flew off the counters, shelves and glass broke on the carpet from glasses they put in the cabin. The ship actually flooded on the starboard side of deck 7. It really wasn't pleasant. This was on the Regatta, the Lisbon-Miami trip. We booked Congiere Class to get the refrigerator, however that is fully stocked by the ship with things for sale. Not an inch to put our stuff in. We asked to have their stuff removed for the stuff we lugged on. No luck. We took it out and put it in a cabinet and it rocked and rolled until we wrote out a complaint that it was breaking all over the room as it flew out.
So I can't speak for the March trip from Barbados but the November trip from Lisbon was the same the last two years according to someone we met in the laundry room who took both.
The ship is pretty but we just didn't think we'd go back because of some other problems we had. I apologize that this all sounds so negative, but if you really want to know, that is honestly what it was. Liz