A Guided Tour of emacs-git

I use "magit" for emacs; for the stuff that I don't find easy to do in magit (or that I don't remember the magit workflow for) I use the standard shell commands (also inside emacs).

I only skimmed this, but I didn't see anything here that would make me switch from magit. It looks like a matter of personal taste to me. Did I miss something?

It's not clear to me from the page: does C-x v v commit all modified files (like git commit -m), or just the current file? I'd like more information about how this interacts with the git index in general.