Pros
International ambient (a given). Great proximity to metro. Food court has good variety (despite the constant infestation of tourists and school groups). Multicultural staff from a wide range of professional backgrounds, although racism and abelism unfortunately exists.
Cons
This is an inefficient bureaucracy even for a public sector bureaucracy. But that's not the main problem. Management (especially middle management) is toxic, misleading, two-faced, back-stabbing and destructive (as opposed to constructive). Many (not just FSOs) lack knowledge of the geographical regions in which they specialize, and are aggressively insecure when there are those who do have knowledge, on-the-ground experience in and hell forbid passion for said areas. The few decent, good intentioned leaders are generally unaware of their lower level colleagues' psychological abuse of staff (including racism, over working, gas-lighting and collective bullying) and won't do a thing about it when they are aware of it. There's a lot of inappropriate behavior, lack of due process, bad time management, lying, miscommunication and don't expect mentorship. Many people are hired for one job and immediately slated to lower level positions (yes, plural) without warning or ability to change, in which zero training is provided yet all is expected and have nothing to do with the skill sets in which they were hired. It's not uncommon for major decisions to be made at last minute, impulsively, without warning and without explanation; and the pay is minuscule for the real work load that often requires one to miss lunch and bathroom breaks. Overall, if you're looking for a career in international development, look elsewhere.