Yes, that's as close to perfect as it can get. Just rush through the turnstiles (and btw the default position is open - nothing stops you as long as the card ha

Yes, that's as close to perfect as it can get. Just rush through the turnstiles (and btw the default position is open - nothing stops you as long as the card has cash, so there's no pausing at all), figure out where the train (or subway) is after that, not to mention not having to figure out tickets from the machine. The only decent way to travel, just go go go, no delay. And you can use the same card to buy a coffee from the vending machines in the station. But then again trains and a lot more really work in Japan. Supermarket? No waiting for payment (card or otherwise) - they're using double-buffering.