One hand position still over the keys and uses common fingers, and is easy for emacs users (Ctrl + Shift + R), versus leaving the typing keys entirely to climb

One hand position still over the keys and uses common fingers, and is easy for emacs users (Ctrl + Shift + R), versus leaving the typing keys entirely to climb to a command key that's used sufficiently infrequently that you have to look at where it is. At least that's my experience. Oh, and more fun. If you're on a modern keyboard, you have to type the function key since apparently volume up and down and expose are more important than function keys. Long story short: what's faster and 'less' for some, is more for others. And this is why we have options! :D