I would also like to hear from someone with first hand experience with the commute to Florence for an overnight. It seems hard to find anyone. Have you asked in another thread Murt22?
From the research I've done so far I gathered a little bit of info if it helps. Our line, NCL, told us we are free to book a night in Florence and there is no curfew in Livorno - so we could take the latest train from Florence if we wanted, or even arrive at 3 A.M.
Most online reviews about it are positive and suggest it's the best way to go, for the best price. I did watch one YouTube vlog that described it as a bit of a hassle, but I think if you just plan well and consider that it's not quite as simple as hopping off the boat and onto the train it should be simple enough.
The port shuttle should take us to 'Piazza del Municipio" (The stop can be searched on Google maps). From there, it's getting to Livorno Centrale station and on the train. Options for that seem to be a 10 minute bus or 30-40 minute walk.
Still hoping someone who's done it finds this and provides a little extra encouragement, but we think we're going to go for it. We've planned very expensive excursions in other ports so we gotta budget somewhere! The crazy prices for NCL's excursions to Florence just aren't worth it when the city is so doable on your own.
