For a country about to have so many elderly people, I think the elevators are hard to reach and the floors shouldn't have been made of hard shiny/slippery marble. And it's actually quite expensive to get around if you start counting.
There's nothing in the world to complain about aside from that.
> And it's actually quite expensive to get around if you start counting.
Because you are closer to paying the real price of the ticket than in Paris where transportation is heavily subsidized by the state. In Japan most train companies have now become fully private.
The great thing about private train companies is how many other businesses they've built in the stations. There's a near infinite number of fake-French cafes in every subway.
Meanwhile here my nearest Caltrain station has some car repair places and a mystery fondue restaurant that never seems to open. I think it's a money laundering scheme.
Well look at Paris' metro and its lack of elevators and escalators. Most stations have none! Good luck if you are in your seventies and your legs don't carry you anymore...
There's nothing in the world to complain about aside from that.