Pluspunten
most colleagues are nice and supportive. some have difficulties dealing with the pressure put on them and become manipulative and bully anyone they perceive as a threat. They are probably nice people normally, but the environment turns them into massive bullies.
Minpunten
I quit working for ICLEI a bit less than 2 years ago. Even with some perspective now, it is still the worst employer I have had. Anyone who comes in with actual talent and dedication will be discarted once they have exhausted themselves on a project - with no thanks from management. On the contrary, management (especially SG, DSG, and head of climate team) are so jealous of talented people that they bully them once they are not needed anymore (ie once you finish a project they were dependent on to finish). I have seen senior management going around taking credit and discrediting the people who actually did the work - it is horrendous. After over 3 years I left exhausted, and decided to take a new direction in life. I advice even the toughest characters to not take a job here. If you do, make sure to stay away from the team leads of capacity center and city-business cooperation. They lack even basic talents for team management, are lazy and manipulative, and once they realize you see through their absolute lack of aptitude for their job, they will become massive bullies. I observed that in 4 cases. Watch out. Oh, and the boss is an alcoholic who regularly comes back from extended lunch breaks stinking of alcohol and clearly drunk.