1) Embarkation: Embarking at the Port of Miami was great. Very smooth and the staff was great.
2) Our cabin was an interior room on the 2nd deck with twin beds. There was plenty of room to move around. I wish there were drawers in the closet instead of shelves but we made do. The 2-in-1 Shampoo/Conditioner is terrible. Bring your own unless you don't mind hair that feels greasy and straw-like at the same time!
3) The food at the main dining room and at Chop Grill was mediocre, but the service was wonderful. On the Italian night I had roasted garlic soup and lasagna, which was my best meal by far. The buffet is good for breakfast and lunch, particularly the taco bar.
For an interior cabin I thought there was a decent amount of room to maneuver. A little more space for clothes storage would have been nice.
Smooth during embarkation. Disembarking was a bit more hectic. (We carried our own luggage).
We took a cab to Atlantis by ourself. It was expensive but we always felt safe and the food was good. The water was nice although it was hard to get loungers.
We went sightseeing and shopping. I recommend lunch at the Six Toed Cat next to the Hemingway House.