This allows a much more user friendly way to edit a website for less technical users. A text snippet is in a text widget in the sidebar, so all the user needs to do is edit the text snippet. Otherwise, the user would have to edit widgets, find the right widget area then edit as text.
Also this is the ONLY plugin I found that would allow me to create a content template, copy to create a number of pages each with differences, but the core of the text can be edited centrally in a number of snippets. The snippets run together as text, with no line breaks or paragraphs inserted, unlike other plugins I tried.