Pros: OPIC has a work environment that is unlike other public sector organizations. OPIC's mission is to create public-private partnerships that invest in the developing world. Appropriately, the work environment is somewhere between that of a modern corporate office, and a typically impersonal and bureaucratic government office. For a federal agency, OPIC is a relatively small organization. It is organized as a corporation, allowing for private sector-style management. The office space is nicer than that of almost any other government offices I have seen. The people are friendly, and very passionate about their work. They believe in OPIC's mission, and are dedicated to improving lives in the developing world.
Cons: OPIC is a government agency. OPIC can be highly bureaucratic, although its small size and the professionalism of its employees makes this much more manageable. Its C-suite execs, senior managers, and Board are political appointees- meaning they may not always be the most qualified person for the job. However, when I worked at OPIC, I found the political appointees to be exceptionally well suited to the task. One final concern is job security. There is some political pressure to close OPIC, and the agency must be reauthorized by Congress every year, leaving OPIC unusually vulnerable to budget cuts or worse.