Vantaggi
Good work life balance in technology. Not too much as startup, more work than a traditional company. Well known in Berlin, search for a next job is no problem. Colleague ambiance among 100 nationalities is really the best asset of company. Career growth and team change depends on your political skills.
Svantaggi
Your evolution doesn't depend on your skills what you deliver but only on your political game ( what others deliver and how you can take credit of this ) As long as you have visibility to other important people , it matters. The peer review is only a ball game about keeping good relations with others. Competent but shy people will stay at the same role, the salary won't grow, they will leave. The talkative who commit lots of mistake will get a promotion. The refund, travel, conference opportunities depend on this visibility.