Used to make a broad statement that applies to most cases or to the overall tendency, without focusing on exceptions.
今年の夏は総じて涼しかった。
This summer was generally cool.
as a whole; all in all; altogether
Used when considering the overall picture or summing up a situation, often after listing several points.
総じて言えば、この計画は成功だった。
All in all, this plan was a success.
This summer was generally hot.
It can be said that his works are, on the whole, highly regarded.