ITA Airways: what are the differences between economy, premium and business

We decided to fly from, New York a Rome Fiumicino, three of us on the same plane: each of us was in a different cabin to compare on the differences and judge every single aspect of the Most important machine for intercontinental network by ITA Airways.

We started from the TWA Hotels e then we met at the gate to kick off the review to try to understand the merits and demerits of ITA Airways' three cabins: is it worth saving money and traveling in economy, investing more for business class, or settling for the middle ground, i.e., premium economy?

Here's how to fly and the differences on theA330-900neo Of ITA.