Vantaggi
You can make good friends with the people in the trenches. Like in combat, you bond with your compatriots.
Svantaggi
Management gives you impossible tasks and tell you to get it done and that is it all. They then set up roadblocks. If it gets done despite their efforts, they get the credit, and you get nothing. Upper management just does what it wants and bullies you and forces you to follow their top down decision without caring much about the people doing the work or their inputs. Lack of trust in upper management. If you care about your job or your sense of professionalism, your work life balance is awful. No career growth. Knowledge is hard to get so technical growth is hard. Company is very tight with money, but will spend on the things that don't really help. If you are not upper management, it is hard to get any respect or cooperation and they will not care what you say or feel.