This study investigated the immediate and long-term personal and professional effects of a 4-day externship training in emotionally focused couple therapy (EFT). EFT externship training uses lecture, discussion, video vignettes, live demonstrations, and role-plays to convey an attachment-based approach to working with couples. The two samples included clinicians (N = 76) who completed surveys immediately before and after training, and a subset of these clinicians (N = 29) who completed measures an average of 8 months later. Results indicate that following training, participants increased in their EFT knowledge and competence, became more open to their feelings, were more self-compassionate, were less likely to use avoidant attachment behaviors, and improved their own personal relationships.