Pros
Solid CEO. Commanding market position in most divisions. Well-positioned in water treatment applications which will continue to grow in importance and value. Strong sales culture (which is mostly good). There is a confidence and swagger within Ecolab, which is good internally but often recognized as arrogance by others (including customers).
Cons
Ecolab is a company that earns (and sometimes demands) your love and loyalty, but doesn't offer either in return - eventually downgrading one's loyalty into tolerance. Loyal employees are said to "bleed blue," but I watched as too many of those people were driven from the company by poor divisional leadership. Has a churn-and-burn reputation which is deserved, particularly in front-line sales/service roles and in finance.