catphive

Note that ergoemacs is not the same thing as CUA mode. Ergoemacs is more about ergonomic efficiency than about mimicking windows. CUA mode is a separate mode already built into emacs.

I used ergoemacs keybindings for a year or so. They are pretty slick, and definitely more ergonomically efficient than emacs default keybindings. However, many modes are designed around emacs default keybindings, and I eventually decided it was too much work tweaking every mode I used to conform to the ergoemacs setup.

If you stick to emacs core modes which are already customized, it's probably a good choice.

The way undo works in emacs is better than standard CUA behavior for two reasons: 1. It doesn't lose history. 2. You can undo within a selection.

However, there's room for improvement. In particular, there's packages that turn undo history into a tree. http://www.emacswiki.org/emacs/UndoTree