I sailed in the old girl in 2010. JPetru82 may be able to update, that is, if he ever ventured down into the deck ape/galley slave berthing (unlikely, but who knows?)
First, the good:
Sailing to ports no MSC ship ever goes to: Kiel, Germany; Gdynia, Poland; Klaipeda, Lithuania; etc.
Participating in the unusual, such as seeing the first landing of a Russian Navy helicopter on a US Navy ship, to deliver a bottle (Vodka?) that went right up to the Bridge; or having a brief exchange while at the wheel with Prince Edward of Kent on a tour of the MW Bridge.
Fun stuff like erecting the giant tent on the 01 for VIP parties, and helo ops, and seeing the green flash in the Strait of Gibraltar after a crappy Bay of Biscay crossing.
The Blue Nose Ceremony upon sailing past the Arctic Circle.
Capt USN (now Rear Admiral?) Long. The Best. One day at lunch he sat down with the deck apes at our table just to shoot the shit for a few. [Not to be confused with Capt. ex-Admiral Long of MSC (sourpuss).]
All this is subjective, and probably won’t reflect your time aboard at all. I’ll skip the bad, which was mostly the shitty accomos with the cardboard stuck between the standing lockers separating your space from the next guy’s. This berthing space was supposedly going to be retrofitted in 2011. Jpetru?
If you come aboard, say a hello from Paul K to my shipmate AB Farmer. He’ll be there.