The clinical utility of the Canadian Occupational Performance Measure from the perspective of clients who completed it and therapists who administered it within a sub-acute rehabilitation setting was investigated. Semi-structured interviews explored ten clients' and six occupational therapists' perspectives. Interviews were audio-recorded, transcribed verbatim and analysed thematically. The emergent themes from the participants' interviews included: (i) features clients like about the Canadian Occupational Performance Measure; (ii) influence of the Canadian Occupational Performance Measure on therapists' practice; and (iii) Canadian Occupational Performance Measure's utility: clients and therapists. The Canadian Occupational Performance Measure increases clients' participation, satisfaction and awareness of occupational therapy.