I have been using Microsoft Edge Developer for a short time now. The day they released it they sent me an email asking to try it out. So far so good. Far and away better than Edge. In fact, it looks and acts just like Chrome. Obviously, it is based on chromium but wow is it similar!
You can sign into the browser with your Microsoft account for sync purposes. I have only signed in and have not tested the syncing. When I first opened Edge it did ask to import my info from Chromium. Everything ported over which I honestly didn’t want. It’s good to keep some things separate for testing purposes.
Right now with out any extensions it feels faster than Chrome. That will be nice when it comes time to support the new Edge. I don’t have any plans to switch away from Chrome but am excited that others, who “click on the big blue E” will have better experiences.