Pluspunten
Conti is a good company that respects an employees ideas(your idea will be discussed and considered but must be clearly useful before implemented). Training is available if you want it. Working hours are controlled and management is fairly transparent. They have tolerated me working on a side project for 2 years as long as I keep up on my normal work (R&D engineer).
Minpunten
You are treated better at Central in Hannover than in the plants / satellite R&D. Company is slow to change and fairly rigid in their process. I think it is at a ok balance to allow stability, but I would find it more fun when we could try more ideas / take risks. Sexism exists and is more than I was used to, but this is compared to temp work for the US forest service (highly focused on being politically correct) and American public university.