One good thing about Emacs is all the key-bindings work by default in the bash shell. If one remaps control to Caps Lock it makes it a lot easier on the hands.

Org-Mode is nice. So is the minibuffer. I can start a regex by yanking text from the main buffer and then un-yanking text into the mini-buffer where the regex is being edited.

Another nice feature is that Emacs is very fast when handling very large files and files with very long-lines. Most text editors choke on these kinds of files.