Background: Early Positive Approaches to Support (E-PAtS) is a co-produced and co-facilitated group programme that aims to provide early years support to family caregivers of children with Intellectual and Developmental Disabilities. Method: Thirty-five caregivers who had attended E-PAtS groups took part in individual interviews or focus groups. Caregiver experiences concerning attendance of E-PAtS were explored, in relation to process variables and perceived outcomes. Interviews were thematically analysed. Results: Three major themes were identified: our group, evolving emotions, and positive approaches. Being with and being supported by other families was very important to caregivers. Families reported increased confidence and greater realisation of the need for self-care. Children were reported to show fewer behaviours that challenge and increases in adaptive skills. Findings corresponded to mechanisms and outcomes in the E-PAtS logic model. Conclusion: E-PAtS shows promise as one way families and children with Intellectual and Developmental Disabilities can access early years support.