Is it worth it to buy a JR Pass for my trip?

Hi
We will travel 2 adults and 2 adolescents in arriving at Narita, to Tokyo, Kyoto, Osaka, Hiroshima, Tokyo and back to Narita. Plan to go around those cities.

Is it worth it to buy a JR Pass for my trip or buy the Shinkansen separately for the trips between those big cities and use the Suica for the in cities transport?

Wait for your comments

Tks

Rene