> I thought it was pretty clear actually: it works out of the box with no configuration (batteries included).

Actually, no. This is not clear at all looking at the website. Unless you assume that vim does not come with "batteries included", which sounds wrong to me. I for one use "raw" vim, without plugins nor configuration, and I am very happy with it.

(Strictly speaking, this is false: I have "set t_ti= t_te=" in my .vimrc so that the screen is not cleared when I exit, but I suppose this kind of fringe features are OK to be user-specified).