I use the Chromium based Edge as my primary browser. Up to this point, I have seen few incompatibilities with the feature assistant or anything else. So, I love this new Edge. I integrates better with Office 365, so that I my reason for running it.
Once/year I use the import from BlackPug feature. It had a incompatibility where it says that the data selected proceeds 5/31/2017. This had no error with Chrome.
As Edge is not officially supported, this is more of an incompatibility vs. bug.