Not enough time for Florence and Tuscany IMO.
If you flew in to Rome and out of Florence you would save a lot of travel time.
I would switch it up to 3 nights Rome before cruise, travel to Tuscany by train on disembarkation day from Civi for 5 nights, fly home.
Same, I think this is better. My problems have been related to the dining room not posting drinks correctly, so a slip would help.
It would be a zero charge if your voucher was being used...
I like both. WJ has great made to order stir fries, and can be much quieter at night than the MDR.
Although we always take our own wine glasses as sometimes the WJ has only plastic glasses!