Thank you, BeachRat
Just worried that the You & Me will be sold out if we wait to buy on arrival since it's high season but if we buy the 9:35 on-line in advance and our plane is late there are no changes, refunds allowed.
Returning to Rome form Florence we are staying for a few nights at a hotel yet to be chosen near the Pantheon so I was wondering what stop that would be in Rome, I'll figure it out eventually, though!
It's the whole high season thing and reading how crowded it is that has me twitching!
Thanks again