For the successful implementation of quality inclusion, all necessary prerequisites need to be fulfilled, such as ensuring an appropriate environment, meeting the needs of all individuals, and effective teamwork among professionals. It is important to emphasize that there are specialists from various fields, and each one's contribution is crucial to making a difference. The aim of this thesis is to provide a qualitative overview of the experiences, attitudes, and thoughts of class and subject teachers, professional associates, and teaching assistants regarding the quality of inclusion of students with developmental disabilities. The method used in the research is a semi-structured interview. The study involved 12 female participants employed in different primary schools in the Zadar County area. The research results with teachers, professional associates, and a teaching assistant regarding the quality of inclusion of students with developmental disabilities support the need for changes in the education system, even though the inclusion participants strive to adapt to modern times and the diverse needs of children. The study participants pointed out various factors that need to be changed and improved for more effective work and overall job satisfaction, considering that educational professionals spend a significant part of their day at work.