Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Gritty, Realistic Fantasy for Adults

I've read a ton of fantasy, and in recent years have moved towards the grittier, adult fantasy. Where stuff like R.A. Salvatore's books were beloved when I was a teen, I now need something more complex and realistic. Many fantasy readers are only interested in the status quo of Victorian mannerisms and dialogue along with heroic sounding names performing epic feats against an unknowable absolute evil, and if that's you then this may not be your style. This series has real characters that real men can relate to: they don't always say or do the right thing, they don't project emotional brotherly love, and they like to horse around. There is a reason this is popular among servicemen, and it's because this series shows how men of war often act. This puts you in the shoes (first person) of an elite mercenary unit and takes you through an unforgiving, realistic world.