Long time lurker - had to register just to echo this comment. After trying and being really unhappy with costs, performance, UI on a lot of other tools, Grafana was the clear winner for large format dashboarding integrating a lot of Epicor data (sales, near-real time production, etc) alongside and including other data from other sources. Beautiful, powerful, and priced right. Highly recommended for this use case. PowerBI was pretty stinking good too, but gets really expensive in a hurry once you start looking at running many dashboards to many people.
Also - thanks to everyone here for saving my ass a million times, and teaching me a lot of rad stuff. Probably should have said thanks a few years ago!