As you know, the italian train system can be divided in two layers: "Le Frecce", fast trains that only stop in important cities and "Regionali", (relatively) slow trains that stop even in tiny towns. The former are fast, pleasant and reasonably priced (especially the Freccia Rossa, the fastest trains in Europe IIRC); while the latter are extremely cheap thanks to state subsides but the experience offered is awful: perpetually delayed, dirty and overcrowded.
People usually complain about the "Regionali", also because they are used on daily basis by commuters.
As you know, the italian train system can be divided in two layers: "Le Frecce", fast trains that only stop in important cities and "Regionali", (relatively) slow trains that stop even in tiny towns. The former are fast, pleasant and reasonably priced (especially the Freccia Rossa, the fastest trains in Europe IIRC); while the latter are extremely cheap thanks to state subsides but the experience offered is awful: perpetually delayed, dirty and overcrowded.
People usually complain about the "Regionali", also because they are used on daily basis by commuters.