In this video the researcher presents preliminary findings from a research and development project (Gynne et al., 2022; Sert et al., 2020) that integrated a digital video tagging tool into the teacher practicum in Sweden. The project involved recording of lessons with the VEO app (Miller and Haines 2021; Sert 2019, 2021), and the use of the recordings in post-observation reflection sessions by student-teachers and mentors. This study presents preliminary findings from the final stage of the project: namely, the analyses of student-teachers' and school-based mentors' perspectives on the use of the method in English language teacher development. The analysis of the interviews with a subset of 6 preservice teachers of English and three mentors working in upper secondary schools showed that this data-led reflective framework promotes (visual) evidence-based reflection and feedback, enriches reflections through repeated (re)view, contributes to teacher leadership, fosters change and development, and encourages future Continuous Professional Development activities. The participants, however, emphasized the need for supervised and continuous use of the tool as well as some practical and technical constraints.