It was really fun, although hot as fuck, i would suggest waiting til October to visit, or go in early Spring. If you do go in summer you will need a battery hand fan and a solar umbrella, and a handkerchief if youre a sweater like i am. Went to Tokyo, Kyoto and Hakone. It was always the country i wanted to visit the most. AMA.
Ate lots of fish things at fish markets and an omakase restaurant. I prefer sushi and nigiri mostly, my gf loves oysters.
It's a massive city with so much happening. Some parts were definitely most visually stimulating like Akihabara. I always have concert earplugs with me in case of loud noises but I was ok, and i mostly have those for hearing protection, not so much for auditory related issues.
I'm not sure what you mean by sites. Like locations? There are tons of little shrines all over, but i didnt see anything leftist related.
Saw some cats, they werent coming up to me though.
Didn't really talk to any locals who didn't work at a place i was at. Lots of workers seem to know some english, but Japanese seem to keep to themselves mostly. When on a train that was mostly japanese people it was pretty fuckin quiet.
Getting around on trains there was easier than New York City. Way better signage and google maps is very good about telling you what station, platform and even the best train car(so youre near the best station exit). Without cell phones it would have been insane figuring everything out.