It's the spaces feature that's the killer app for me. I juggle multiple work projects so it's useful to separate them into their own individual space. I also use (and test) a ton of different software for myself and my clients so I have a lot of bookmarks saved and it helps keep everything organized and clean. 

I also like how it gives you a full browser window without the address bar and tabs visible. You have the full-screen real estate and can easily use the off-canvas menu to switch to different tabs and folders. 

I tried moving back to Brave a week or two ago and didn't find it as intuitive. All Chrome/Brave extensions work on it too.