Flying into FCO at around 8:30 on a Saturday, and need to be in Florence by evening.
Question: is it worth stopping at Termini, grabbing a pastry and walking around a bit, and then and having lunch in Rome? I'll have a rolling carry-on with me and a small backpack.
On the one hand, it would be impossibly idyllic to find a cozy outdoor cafe where I could eat some antipasti and pasta while people watching, and maybe see the Treviso fountain. Catch a glimpse of the Colosseum from a taxi, and I'd consider my half-day in Rome complete. Total time in the city maybe 9 a.m. to 3 p.m.
On the other hand, schlepping around Rome with a carry-on could turn out to be a nightmare start to my trip. Is it better to just transfer at Termini and be in Florence in time for a late lunch?