Pros
Flexible working hours, informal atmosphere
Cons
Top down organisation (Ivory Tower), loads of yes-men/women (who get promoted), no real job security as every year there are lay-offs due to organisations changes, people with real jobs are being substituted for interns / temporary people (flex workers) /outsourced to low income countries (india/poland), as a person you cannot be honest about what you think because it will be used against you during your review (especially when you are near a permanent contract), within this company you should always remember that people wear a mask, many unilever projects are façade for the world outside to see how "good and involved" we are, Unilever will do anything for the shareholders. Short term goals are most important. It would't surprise me if employees would be asked to post positive things on glassdoor.