The purpose of this contribution is to provide a practitioner's view of the effectiveness of institutions in enacting a peace mediation approach. The European Union is used to provide an illustrative example but this analysis might also be applied to other institutions, possibly in a comparative context. The article suggests an actor-centered approach to assessing mediation effectiveness through seven "virtues:" competence of the actor; political will, norms, and values; resources to induce mediation leverage; legitimacy, presence, and mandate; information and analysis; multitrack competence; and follow-up, sustainability, and accountability. The contribution aims to facilitate the work of scholars and practitioners who work in this field of mediation, as the author has noted a confusion about what the field of peace mediation in terms of practice and inquiry actually is, which results in discussions one could characterize as "ships passing in the night," which advances neither scholarship, nor practice. As such, this article calls for greater attentiveness to a few further dimensions of mediation process with intention of stimulating more research in this field and a fuller understanding of the evolution of peacemaking practice itself.