Instruct: Classify Amazon reviews into positive or negative sentiment
Query: quite thorough

this book is a gemunbelievable detail -- it may transport you into a Iron Brigade soldiers uniform more than any other book.however, not much battle detail - you are built up to the date you know is their first battle - and Ray is shot almost immediately i-- and then writes details later as he convalesces. It can really hold you in suspension.Ray himself is an interestingly detached character, but definitely takes pride in being good at his job of soldiering. After all, he is in the Iron Brigade.This book cant get a little tedious, but if you let it you can get into it, and it becomes quite gripping, even in the mundane parts of camp life. You're always waiting to see what crazy thing happens next.