I spend at least a month in Japan every year and the tech there is great for the most part. All of the critical parts infrastructure tech is brilliant and incredibly stable.

The lack of risk taking is very noticeable though especially when it comes to contemporary software and UX. There just so much broken tech because everything moves so slowly - for example to pick up a reserved train tickets you need to bring the same physical card you made you payment with and thats the only way. So if you used a virtual card or forgot your card at home you're screwed.