National Louis University, a member of CARLI I-Share, migrated to Alma/Primo VE in June 2020. Prior to the migration, users needed three separate accounts to access library services. This caused a great deal of frustration and confusion for everyone. Without a discovery layer in place, users had trouble figuring out if we had access to certain articles. This created a large number of cancelled ILL requests due to user error (~50%). During migration, a large amount of resources and staff time were poured into the process. In order to gauge our return on investment and provide quantitative evidence that these efforts did in fact improve services, we assessed data from three years pre- and post-migration. In this session we will discuss the findings of our assessment, how libraries can conduct similar assessment projects, and make changes to the PrimoVE display based on those findings.