Oh wow, I'm a vim user and i have yet to hear about this. It's basically a version of vim with more goodies? Does it run in terminal and gui?
Using the space bar to drive a text interface is a win over the stock emacs key chords, which wear out my left arm/wrist.
Vi's modal editing, once understood, is a general win, too.
Spacemacs blew my mind by setting up a Language Server Protocol (LSP) environment for python with almost zero effort. Not sure if SpaceVim is quite as broad in its feature set.