Pros
Great science and really outstanding scientists. We have fantastic chemists and remarkable biologists, and this remarkable range from breeders to process chemists to genomics folks -- it can be very stimulating. The company is also extremely international, so not only can there be quite a bit of travel there's ample opportunity to really get to know people from different national backgrounds (primarily European, but activities in Asia, South America and to a lesser extent Africa are ramping up rapidly)
Cons
The company is Swiss, huge, bureaucratic and frustrating. Ultimately the goal is feeding the planet, but decision making is incredibly complex, and it seems like there are entire departments whose only job is to make your job harder for you to do successfully.