It's a good book. I have read it a few times already.
I have been on multiple battlefields as well.
Cold Harbor in Virginia was particularly disturbing to me. It demonstrated to me that Grant did not care about men, their families, and especially their lives.
It was a slaughterhouse and Lee maximized the terrain and funneled the enemy troops thru a small opening into the killing zone surrounded on three sides by the Confederate troops.
Grant knew it but did not care. He could replace men. So their lives were of no particular importance to him.
Sherman was a far superior General to Grant.
Jackson was the best fighting General of the South and a better tactician than Lee himself. He was a fighting man's General. What I like best about him is that there is no question about his Faith and trust in God.
While I live above the Mason Dixon line I am a fan more of the Southern army and its leadership than of the Northern leadership.
In the end though I am happy that slavery was ended and I wish it could have been at far far less of a cost of life.