In reply to Amir Helzer.

Please, please listen to Amir. I'm not saying that because I use his Toolset plugin; years of using it has taught me to respect what he has to say.

His perspective isn't that of a blogger but of someone who supports a LOT of people who build business sites for others. He's a great source of knowledge about those of us who build business sites for clients because he sees and supports us and our issues.

And, holy cow but his team gets a lot of work done.

Please, listen to him and don't break things.

My only suggestion beyond that is checkboxes in the Classic Editor plugin to select which post types could use the Gut editor. Maybe I'd like to turn it on for a clients blog Posts and Pages but not all the carefully built CPTs. If necessary though, I'll just turn it off completely.