Avantages
One can work somewhat autonomously, depending on the office. You're doing mission-based work for a national leader on the issue of homelessness (until the mission was changed); mostly you're working with really talented, smart, creative, and committed staff.
Inconvénients
NO work-life balance, though they talk the talk about it. You're required to travel a LOT and expected to do it so cheaply, just shy of a KOA campground. No training - you're just thrown in and expected to swim immediately. Line of command is not coordinated resulting in several people asking you for conflicting projects and timelines; WAY too much "navel gazing"! They're always getting grants to evaluate HOW we work every year or so, so there's some new schtick everyone follows for the first month. Evaluations are conducted twice a year along with complicated work plans. Sometimes it feels as if you spend more time evaluating your work than actually working.