I practically lived on the Liberty Of The Seas this past December and January, doing 3 cruises. Great crew of course, and a nice ship. I like the Freedom class, perhaps even more than the Oasis class. The crew was awesome and they were very much 'in sync' not missing a beat.
When I was in the Navy many years ago, my ship stopped in Livorno and my buddies and I went to Pisa. At the time you could enter the Leaning Tower and climb to the top. Very claustrophobic experience during the transit in the narrow stairway, with people going in both directions. The top was a bit scary since the safety rails were quite inadequate. The adjacent cathedral was very beautiful. Lunch was wonderful at some little place with a handful of tables nearby.