Pros
Paycheck (however small). Health benefits. Some people are nice. The Annual Conference is a great event and something that most employees there can be proud of. You will probably learn a lot about what other organizations in international development are doing.
Cons
Poor management, negative work environment, low pay, nonexistent leadership, really high turn over and horrible HR practices = stress stress stress, especially during the conference. A handful of people (including myself) were treated badly while I was there in the sense that they were treated like errant children when they voiced legitimate concerns or complaints. This is a lot of people considering how small SEEP is.