--- - |2 As routine outcome monitoring systems develop, questions emerge about how therapists incorporate feedback into their practice, and how this relates to therapeutic gains. A case of covert grief was monitored in each session with the Personal Questionnaire and the Helpful Aspects of Therapy instruments. At 4 months follow‐up, the Change Interview was administered. Individualized items facilitated access to the private views and needs of each member, which was useful for case formulation and ongoing personalization of the intervention. Qualitative feedback of treatment experiences helped therapists confirm the impacts of interventions, monitor therapeutic alliance, reformulate clinical hypothesis, and plan sessions. Therapists followed a critical triangulation process to decide the clinical meaning of feedback, according to his/her intervention model, expertise, and case‐specific context. - Journal of Marital and Family Therapy, EarlyView.