I used it for a recent WP site and found it quite intuitive to use. The generated code is clean, and it integrates well with shortcodes and third-party content

I used it for a recent WP site and found it quite intuitive to use. The generated code is clean, and it integrates well with shortcodes and third-party content. I generally prefer code view to WYSIWYG, but it's one of the nicer editors I've used. I found some of the keyboard shortcuts to be unintuitive. Toggling between code and visual modes required four button presses. Edit>Redo is also weird as it uses Ctrl+Shift+Z, not Ctrl+Y. Overall though I think it's a positive change. I hope that Gutenberg manages to kill all those awful page builder plugins like WPBakery and Visual Composer. That would make me happy.