hospitalist here - I think “everyone hates epic” is a major over-generalization. If you have worked with one implementation of Epic, you have worked with one implementation of Epic. It probably does not meet the standards of popular modern software, but it is complicated. If it is implemented as a replacement for paper charts, it can be terrible. If it is thoughtfully customized to support common and important workflows and support high quality care, it can be a life and efficiency saver.