Pros
OPIC provides good opportunities for networking. I encourage everyone to attend brown-bag lunches and similar events. There you can learn relevant up-to-date industry information and get to know people from department you don't directly interact with. They also invite people from partner organizations like IFC to exchange latest news and achievements. Supervisors are usually supportive of your needs if you vocalize your interests and request more assignments. OPIC is one the best state agencies to work at and retire from.
Cons
The pace of working was too relaxed for me. A lot of my senior (both in terms of positions and age) were very behind technological progress. And I'm talking about simple things like basic knowledge of Excel and ability to print the way you want. Sometimes I had a feeling that people working there were bored with their work, but didn't want to make a little effort to make it more fun.