I was kinda excited about Gutenberg but after trying it out - not so much. Seems there is a steep learning curve to get things appearing exactly like they used to on loaded pages. The new interface seems to be slow and laggy. It also takes more clicks to get some things done. I guess Gutenberg would work great for new site developers who are learning from scratch, perhaps the Gutenberg interface is not intuitive, maybe I am not smart enough, maybe Gutenberg is a mistake. I don't know, but for now, I hope WP maintains the classic editor plugin for a few years.