Suica was awesome in tokyo, but I wasn't able to use it in Osaka unfortunately. Other than that, I love it. I had the card originally but I switched to just using my phone.
How long ago was this? In the past couple of years, I believe the backend systems have been integrated so you can use Tokyo-specific cards in Osaka and vice versa
I’ve used suica from Hokkaido to Kyuushuu. Some local bus lines don’t accept it, including the one in my city, but they seem to be gradually adding suica compatibility everywhere. It’ll probably be universal in a few more years (tech adoption is incredibly slow in Japan)
