People are never satisfied with WYSIWYG plugins. One of the biggest frustrations, especially when working with an Administration theme, is that what appears in the editor is NOT the same as what appears on the website. And the "preview" button does no good either. For instance, if you've got custom spacing, list styles, or specific classes for typography, you're not going to see them in your WYSIWYG editor, and therefore, what you see is not what you get.