I really like the CMS Page Builder (Drag and Drop Editor).
It is like Elementor for WordPress, but works better with the theme to create a consistent look.
What I would like to see improve is the module builder.
It would be nice to have a power user that could edit modules from WYSIWYG Editor (e.g. adding fields instead of relying on a developer), Also being able to clone a module in the Page Editor, and make changes (e.g. a module with tabs that are vertical, but the new duplicate module would have tabs that are horizontal).
Being able to clone and edit modules within the WYSIWYG would allow marketers to do more without relying on a developer for minor ad-hoc changes. (Developers are best with projects).
Sometimes I want to make basic changes like font size, but I have to go into design manager or use a developer. I do try get the developer to add more options when the theme is first created, but it it is hard to predict what is needed in the future.
If exiting modules had a power user that could do could add the any of the CSS options from a visual editor, it would be more like Elementor - but with the advantage of still relying more on the theme. (inconsistencies can creep in with Elementor as relies less on a theme for consitency).