Otherwise, it is a utilitarian form of transport that is nowadays squeezing as much profit from comfort as the infamous Ryan Air. Well, I have only travelled by train recently in South Korea where no trip is long enough to require much in the way of amenities.
These writers had a better experience and one I now want to try (here and here). From the former link:
In a 2009 piece for The Millions, Emily St. John Mandel describes working on a novel during her morning commute on the New York City subway. “It felt like extra time,” she writes. “I began scrawling fragments of the third novel on folded-up wads of scrap paper, using a book as my desk.” Mandel polled around and found other writers used the subway as a workspace, too. Julie Klam: “Part of the reason I like it is because it has a very distinct end. It’s not like having six hours at home. I tend to have great bursts of inspiration that last about six stops.” Mark Snyder: “I think the act of working, surrounded by other people living their lives, can be quite a compelling act for yourself. It makes me feel less alone.”