I flew EZE-FCO-EZE on PE in November.
On the way to Europe we had the older seats with the hard seatbacks. They are not particularly comfortable and the IFE is a good reminder of what flying was like in the late 1990s

Service was pretty good, though - welcome drink (prosecco, water and OJ), Argentine and Italian newspapers, constant water/OJ rounds during the night, etc.
Going back home, we got the new seats. Those are much more comfortable, with generous recline, and IFE was very good - the screen is large and has a good resolution, and there were many recent movies. Wi-fi was available but I didn't try it. Catering ex FCO seems to be much better than ex EZE. Italian newspapers and the International New York Times were offered. It was a very bumpy journey, hence there weren't as many drink rounds during the night as on the previous flight, but still the crew did a good job.