I concur with a few of the negatives. However travel is so often about getting out of your comfort zone.
In any other city in the world, I would worry about carrying wads of cash, not in Tokyo, not only is it (generally) safe to do so , but imperative if you want to transact anywhere other than major store chains or hotels. Also one gets a better rate of exchange in Australia before you leave. I learned that lesson early on in life.
We found food to be real easy, there are / were small local (almost hole in the wall) places everywhere and the food was amazing.
Coffee: when I travel to places other than Italy , I usually stop drinking coffee.
I think American coffee is the worst, and there are plenty of other competitors for the top spot. But, as I said, travel is so often about being taken out of your comfort zone.