Pros
If you like to do a lot of different things in a day, some positions offer that opportunity. If you're starting out your career or changing careers, look at jobs in the field offices where you can learn a lot and do many things. Staff sizes are small which can be a positive because you don't get bored and you can be involved in a lot of projects from small all the way up to management committees. You can learn a lot if you're the kind of person who doesn't like to be stuck in a box and is willing to work hard. Great communication skills are important to keep your voice in the mix.
Cons
The company is working on their technology which is behind the times. Your ability to learn, grow and have fun in your position depends a lot on your manager and their leadership strengths. Everyone is busy all the time because they're doing many jobs -- that can be a pro or a con, depending on who you are and what you like to do every day.