Pros
Very exciting job if you love being challenged. You are in the center of the entire air traffic system and eventually have an elevated understanding of how air travel actually operates. This knowledge is priceless as you can apply it to your personal travel preferences and/or habits. You will work with airline specialists, dispatchers, pilots on a daily basis, the majority of local and regional air traffic facilities based on your location. All of which gives you a solid understanding of your job. The work is very exciting when you realize that your skills actually matter to the employer and are held in high regard.
Cons
You're working for a US government agency. If you believe employees are individuals that should be acknowledged when performance exceeds exceptional levels, they should be rewarded or thanked for being a reliable person, and that the employer should always stand behind their team when problems or criticism arrives then you'll absolutely hate this job. You're what is affectionately known as a "warm body". You're filling an empty space somewhere and as long as the space is full then the agency feels they've done their part as an employer and carries along without you. Working for the FAA or any government agency will always feel lonely and empty.