Edge is great. Lightweight and all but for now you’re better off sticking with whatever browser you use. Edge won’t be able to replace your Chrome or Firefox or Safari. It will get there someday but it is still far away. While some bugs like its intensive use of resources will be fine tuned, it’s not until extensions start being supported that Edge will start being something I use all the time.
It stutters here and there and it has every feel of a late stage beta product than a version 1 release. It’s built-in Adobe Flash for instance crashed on me more than once when trying to play full screen video. The Cortana integration is great though as it removes a step when you want to look up something on the web quickly.