I flew FCO-FLR this week and both ways was operated by a 319 iso Embr. likely due to heavy traffic currently. Basically it seemed to me that 80% visitors in Firenze where US citizens. At check in in FLR huge lines for Skyteam flights in the morning.

The A 319 is all economy although curtain is somewhere around row 3/4
Its a 30 min flight. No service on board.
First 8 rows offer more legspace