I listened to the audiobook version of "Joker One" by Donovan Campbell. It currently has 4.5 (of 5) stars from 80 Amazon reviewers. I got the book based on positive reviews that commented on its accurate depiction of life in Iraq for our soldiers. This NPR site has a nice excerpt, and other sites offer the first chapter.
I liked the book. It's not the most polished of writing, but I wasn't expecting that. It did deliver what I hoped for, a description of what day-to-day life is like for some of the soldiers there (in this case, for Marine infantry).