This chapter presents experiences and reflections from using the EKD Enterprise Modeling method in a number of European organizations. The EKD modeling method is presented. The chapter then focuses on the EKD application in practice taking six cases as an example. The authors´ observations and lessons learned are reported concerning general aspects of Enterprise Modeling projects, the EKD modeling language, the participative modeling process, tool support, and issues of Enterprise Model quality. They also discuss a number of current and emerging trends for development of Enterprise Modeling approaches in general and for EKD in particular.