To get to the Nittere Tower Zero Studio Plaza, you can access it from the JR Line Shimbashi Station Shiodome Exit or the Ginza Line Exit 2, heading towards the Shio-site area.
From Shiodome Station, head towards Shimbashi and the Yurikamome Line.
And, there's a seating area at Zero Studio Plaza, located in front of the currency exchange and Taco Bell.

There are six 3-seater wooden benches and a semi-circular bench that can seat 30 people.
Zero Studio Plaza is a large space where various events are held.
Because of this, you can relax and take a break without feeling cramped, as there's plenty of space around your feet.
It's also a convenient meeting spot in Shiodome and Shimbashi.
It's also a great place to organize materials or make phone calls for job hunting in Shimbashi.
As for the congestion situation, I checked on weekends and holidays, and the seating was about 70% full.
However, since there are many seats, it doesn't seem like it will be completely full, and I got the impression that the turnover is quick.
It's a large resting space, so it's convenient for eating your lunch in Shimbashi.
So, why not try using it as a seating area in Shimbashi and Shiodome?

