As you know, I have friends that come to visit this part of Italy and is logicaly that we pass some time together. So I make many train-trips in the last time.
It's would be comfortable to travel in train in Italy IF
The railway stations are normally relatively clean. Well, it's often that the toilets do not work and are closed, it's true. The other problem that you can find the ticket-office closed too. We have now common tickets for regional trains and buses, so if you have this problem it's enough that you find a shop with great "T" (Tobacco) and ask for your ticket there.
Most trains are comfortable and modern. And... if you did not find the toilet in the station, you can find it open in the train. Oh yes, I understand, but you know that sometimes there are cases...
There are many stations in our zone where you can see sea nearby or even stay over the sea. Like in this station in Pozzuoli where you can see the sea in the background on the photo.
Why I wrote "would" and "IF", you ask me? Because it's too often that the trains come late. And sometimes very very late.