Pros
The people! Army personnel are dedicated to being the best, have high morale, and take care of each other. Furthermore, the Army provides some exciting opportunities and challenges I would have never found outside the military. Medical benefits are pretty good. You can't beat free medical and dental coverage (at least for an individual service member) with a stick. These types of benefits are difficult to find in the private sector and medical care is often a large part of a family budget. Overall, if someone is looking for a challenge and being with a group of dedicated and highly motivated professionals, I would definitely recommend looking into the Army.
Kontras
Unfortunately, a downside to the Army and military in general is work/life balance. Multiple deployments not only strain the service member, but the family as well. Furthermore, multiple moves with the family can be stressful as well. However, most people who join the military or remain in the military understand this fact.