Routine Outcome Monitoring (ROM) is held as a greatly important part of practice across many Health Care Services, both in the NHS and in private practice. Yet despite this, there has been little research into the attitudes of practitioners towards ROM. This paper looks at the attitudes of 50 clinicians from two Child and Adolescent Mental Health Services in greater London. The findings showed that although the practitioners were not overwhelming positive in their attitudes to ROM, neither were they overwhelming negative, and many of their concerns involved practical issues surrounding ROM that are potentially soluble. Practitioner engagement in ROM is key if ROM is to be used constructively to reflect on practice.