Parental interventions can help parents use strategies to support their child's language and communication development. The ComAlong courses are parental interventions that focus on responsive communication, enhanced milieu teaching, and augmentative and alternative communication. This interview study aimed to investigate the course leaders' perceptions of the three ComAlong courses, ComAlong Habilitation, ComAlong Developmental Language Disorder, and ComAlong Toddler, and to evaluate their experiences of the implementation of the courses. Qualitative content analysis was used to analyze the interview data. Thereafter, three categories resulted from the findings: Impact on the Family, A Great Course Concept, and Accessibility of the Courses. The results indicate that participants perceived that the courses had positive effects on both parents and themself. Furthermore, it was described that parents gained knowledge about communication and strategies in how to develop their child's communication; however, the courses were not accessible to all parents. The collaboration between the parents and course leaders improved, and course leaders viewed the courses as an important part of their work. The following factors had an impact on the implementation: several course leaders in the same workplace, support from colleagues and management, and recruitment of parents to the courses.