Pros
Medical and dental benefits for the family is by far the best thing about working for the Army. All dependents recieve free medical care, and reduced dental fees. Another good reason to work for the Army is that during your tenure in the service, you'll experience many lows, maybe even the bottom. Knowing what bottom looks like gives you a good idea where to go from there...
Cons
The immediate leadership is more concerned with taking care of themselves prior to ensuring subordinates have no issues, concerns or problems. That mentality goes hand in hand with the tendancy to give very vague guidance and instructions, send subordinates out to complete a task, and then berate and punish said subordinates when the task is not completed to standard. The Army is also notorious for having a "one indispensible person" that knows a critical job, and does not replace or train others in that job, resulting in said person being unable to take time off. There is also a tendancy to judge a book by it's cover in the Army as well, i.e. someone who is overweight is immediately labeled a dud or worse.