We traveled as a group of 4 and stayed in one interior cabin. The cabin was small, but we expected that. There were enough single beds for everyone and we were only in the room to sleep anyway. The cruise director and his staff were very active and made sure that there was plenty of events going on all over the ship.
My kids (teenagers) had their own set of events going on with the Youth Programs Staff so we rarely saw them while at sea.
Expect to walk A LOT! From walking to and from your room, to walking from event to event, there are always things to be walking to or from. We found time everyday to walk laps around the ship on deck 7. Don't bother with the elevators. While they are nice, there are so many people waiting for the elevators (especially on day 1) that it takes forever to catch one. Just use the stairs!
The port was very easy to find and everyone was very eager to help you with any need.
We did not want to do the Disney excursion and there was not much more than that offered through the cruise line so I booked our own excursion into Cocoa Beach. It was great!