The advantages of Six Sigma do not exactly lie in huge cost benefits that can be realized by its implementation. The glaring examples of many corporations having saved billions of dollars are true benefits but the intangible results, such as having met the expectations of customers, and being able to improve employee relations are also paramount. Because some corporations have experienced its failure to meet stated goals, some critics often raise questions about the feasibility of implementing Six Sigma, while still others are dismissing it plainly.