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Tri-Rail is a commuter train I often ride. It has reasonably comfy seats, power outlets for charging things, tables for laptop users, and low prices.
It's often really empty though, except for the rare times it isn't, when it ends up being really crowded, and generally full of people like myself who can't afford a car.
The train itself is comfier than a car though: the ride is smoother and far more quiet. I can choose to look at art (graffiti) and nature outside the window, or read a book or on my phone during the ride.