Actually I don't really have any about Japan haha. It was perfect at first, then I saw all the negative sides during the following 2-3 years and started to see all the trade-offs inherent to the positive and negative sides after. Since I am paid in foreign currency I even benefit from the yen being weak and thanks to that can stack more sats. I started to read When Money Dies, and all the problems which occurred in Germany are for me extremely similar to the social problems we see popping in Japan here and there. E.g.: foreigners buying more stuff in Akihabara like what happened the Weimar Republic, new form of prostitutions of young girls (tachinbo in Ikebukuro, etc), criticism of prices of hotels being to high for locals but not for foreigners, it is the fault of Putin (the new Jew), etc. So no pet peeves against Japan, just pet peeves against fiat currency (that I benefit from now anyway thanks to Bitcoin)