Is it worth it going to school in Japan?

I know that being in Japan due to immersion will probably help a lot with learning Japanese. But, are the schools actually good?

I have read books about Japanese culture and how it tends to be based on rote repetition, pointless drill exercises, etc. Are Japanese schools of Japanese language like this, or do they have a more modern approach?

I realize that saying "Japanese schools" encompasses a HUGE amount of institutions, but I mean generally speaking.

Thanks in advance for your help 🙂

PS: I am 40 and have no interest in working in Japan, my interest in the language is mainly as a personal challenge and wanting to enjoy media without subtitles.