I made the switch. I want to say its glorious, but there are definitely some pain points. Not with Firefox itself, mind you (it's seriously amazing), but with 3rd party apps. Things that I use every day _suck_ on Firefox. Top of the list right now is Lastpass, which while completely seemless on Chrome, doesn't even have the ability to copy a username or password on Firefox (what??) (anyone have a two-factor auth alternative?).

Still, they really nailed it with quantum. The dev tools are excellent (finally!). I can deal with the second rate extensions if it means compartmentalizing just a small slice of my life from Google.