We chose this cruise because we had always wanted to go through the Panama Canal. We only could take two weeks off from work, so this was the cruise we chose.
This was a repositioning cruise for the Miracle, but Carnival also billed it as a Panama Canal cruise.
PROS:
Clean, good cabin steward. Obstruction was minimal, and consisted of a lifeboat that came up to our ankles.
We did the Mayan spiritual tour/Antigua. We are not super religious people, and picked the tour because it allowed us to walk around Antigua at will. The spiritual part was actually quite touching, it was obvious to us that the person that did the ceremony was passionate about his calling. Lunch was delicious.
We walked (a 10 minute walk) to a small public beach. It was a hot day, felt great to get in the ocean!