Design-Expert graphics are a gem. The clean and crisp images showed me the story of my experiments, simplifying my understanding of what was occurring. For example, a cube plot is a clear way to show how three factors combine to form ideal and repeatable responses. Even nicer to view are 3D response surface maps. Stat-Ease programmers have given users the ability to rotate entire response maps for easier viewing.
Visualization is easy when experimenting to find optimum and robust settings.
My attendance at a DOE workshop was essential to grasp proper experimentation knowledge. And I learned that because DOE computations are so complex, nearly all commercial workshops claim allegiance to one or more software programs within their syllabus. Design-Expert garnered unreserved respect from my fellow workshop attendees. The software encourages good habits, explains itself and DOE in ways that educate in a noncondescending manner, yet avoids oversimplification. In interviewing practiced users, I heard story after story of dramatic money savings produced with this software.