I found out about evil mode two days ago from the 24.4rc1 post, and so far, it feels like vim but a little wonky. The great thing is pressing C-z in evil mode toggles between vim/emacs modes and is very convenient.
I'd agree that evil mode is quite nice, and emacs seems like something useful to know. It really depends what you prefer. I'm trying out emacs specifically for the formatting plugins as vim seems to fall behind in that regard.