One of the clearest benefits of Emacs's undo system is that you never lose history the way you do with an undo/redo system. I also personally find it more conve

One of the clearest benefits of Emacs's undo system is that you never lose history the way you do with an undo/redo system. I also personally find it more convenient. However, as somebody else mentioned, you should also check out the undo-tree plugin. Some of my friends really like it.