Mental health services are increasingly incorporating the views and expertise of people with a lived experience of mental illness in service delivery. A novel approach to this is the ‘integrated staffing model’ being trialled at two Australian public residential mental health rehabilitation services (Community Care Units, CCUs) where peer support workers (PSWs) occupy the majority of staff roles and work alongside clinicians. Semi-structured interviews were completed with fifteen staff 12-to-18-months after service commencement. Transcripts were analysed following principles of grounded theory analysis. Key emergent themes were: (1) recovery is a deeply personal and non-linear process; (2) The CCU as a transitional learning environment; (3) the integrated staffing model facilitates an effective rehabilitation team; and (4) coming together under the integrated staffing model required a steep learning curve. The findings suggest that the integrated staffing approach may provide a pathway to facilitate the meaningful inclusion of PSWs in rehabilitation settings.