Yesterday I switched from Firefox to Edge as my default full-time browser. The reason for hesitating to switch before are two missing plugins I use very often and they are SpeedDial FVD and Tile Tabs.
uBlock Origin and Pocket are both available and are working fine.
The reason for changing my mind and switching yesterday is: There was a page that loaded and scrolled like crap in Firefox but was amazingly smooth in Edge. In Firefox, it kept stuttering and it loaded very slowly.
I don't have Tile Tabs, but to workaround the Speed Dial FVD extension not being available, I started using
https://myfav.es for having my bookmarks on the homepage in a nice graphical form.
Happy so far. I will see if I need to switch back.
One limitation I found so far is that you can't tell Edge to display the homepage when opening a new blank tab. I worked around this by pinning my homepage and having myfav.es open links in new tabs. I can get used to this, it's not bad at all.
The only issue is we still use Windows 7 at work and I use Firefox for personal browsing (IE11 for work). I might have to install/load the Edge in a VM that's provided by Microsoft. We'll see....
It might be nice if they made Edge multiplatform to gain market share faster.