Pros
The culture of Ecolab varies significantly between divisions and even departments. Some divisions have the reputation of working employees excessively while others (such as R&D) are known for being more flexible and providing more recognition and support. Ecolab has a strong track record of success and will likely continue to have very good performance. The organization also contributes significantly to the community and to philanthropic causes. I always felt proud to work for Ecolab. There are many truly wonderful and talented people who work for the organization, and if you are lucky enough to work for one, you will likely love your job and have a very positive experience with the company.
Cons
I experienced or witnessed many examples of employees being expected to perform with inadequate resources, sometimes to the extreme. The culture at Ecolab is not diverse - in gender, ethnicity or even in personality/communications style. Outgoing, aggressive (or at least assertive) men seem to do best within the organization. I did not witness much tolerance for different work styles, although this varied between divisions. There also seems to be little trust of employees to do the job for which they were hired, resulting in reduced authority to make decisions or take action without an arguably excessive number of approvals.