It's great overall, but in the long run there is little room for advancement or opportunity for growth. Pay raises are minimal and standardized across government. Very bureaucratic and everything needs to be highly justified and evidenced by several people/bodies.
Departments vary significantly in terms of work culture, stress and management.
Great for exposure to government, public affairs, international relations and working for the public sector.
The people are the best part - amazing colleagues, great fun and a mix of British, American and other nationalities. Sociable and hardworking group.