The present study explores therapists’ experiences with integrating client feedback systems into clinical practice and identifies factors influencing resistance or acceptance of this tool. Utilizing a qualitative design, 14 therapists from private clinics in Madrid were interviewed using semi-structured questions. Thematic analysis revealed six major themes: general difficulties, patient profiles, potential improvements, feedback regarding the therapeutic alliance, underutilization of feedback tools, and emotional responses elicited in therapists. Logistical, personal, and emotional barriers were identified, including the perceived disruption of therapy flow, fears of damaging the therapeutic relationship, and therapists’ discomfort with self-assessment. Despite recognizing feedback’s utility for enhancing therapeutic outcomes, therapists reported ambivalence and inconsistent implementation. The findings underscore the need for improved training, greater awareness of feedback benefits, and strategies to address therapists’ emotional and logistical concerns. Addressing these barriers can foster more effective feedback integration to strengthen therapeutic alliance and optimize client outcomes.