The End User Advisory Group (EUAG) was created by LF Networking (LFN) to share views, challenges, and best practices between user organizations; highlighting new areas of opportunity for the developer community. EUAG is made of individuals from end user organizations, including telecommunications carriers, cable companies, network providers, and compute or storage service providers. In this paper we broadly refer to this group as CSPs. As the voice of end user, the EUAG supports the vision of ONAP and its adoption in the industry as well as contributes use cases and requirements to the project that deliver maximum value to the industry as a whole. The EUAG’s ONAP working group is the author of this paper, sharing views on the most important considerations, opportunities, and impediments towards a seamless end user adoption of ONAP. This paper attempts to cast light on consumption aspects of ONAP—what are the challenges, key considerations, models and references—as well as the opportunities for CSPs looking at projects like ONAP.