Gedit is not a text editor, but more a IDE. Its extensible for work with source code, but not with text files. For example, its formating is hidden deeply inside (text style, line warp etc). Besides, it now uses GTK3 libraries, which have "own unique style" of GNOME3. If you are not inside GNOME3 or fan of it, you may feel uncomfortable with how it now looks and functions.