Pros
In spite of itself, the company makes incredible margins and has established itself as the clear market leader. They are in the sweet spot of the economy, providing cleaning and antibacterial products (among others) to the commercial marketplace. This has allowed them to navigate the economic downturn relatively unscathed.
Cons
I would rate the executive management as poor. Their actions are in complete contrast to the values they communicate to their workforce, The "good old boys" and their perky gal pals get the promotions and can do no wrong while the real performers are ignored if not even derided. They jump into new initiatives and promotions without establishing the processes/infrastructure to support them, then expect the workers to jump thru hoops and work ungodly hours to deliver. I consider the Ecolab culture to be dysfunctional, bordering on abusive.