This study aimed to understand doctoral candidates' and supervisors' positive and negative experiences of undertaking a doctorate in a structured interdisciplinary research training environment. Interviews were held with 16 candidates and eight supervisors involved in an interdisciplinary research centre. Most candidates were undertaking a disciplinary focussed doctorate while being active participants in the centre's doctoral education program. Our findings highlighted three themes that influence positive or negative experiences: the design of the interdisciplinary environment; the critical role of communication; and the qualities of candidates and supervisors deemed important to work effectively in such an environment. We conclude with suggestions that might help develop an effective interdisciplinary research environment.