I am not sure of the utility of SpaceVim. Why wouldn’t I just find and install the plugins myself?
For example, in AstroNvim - the path completion dropdown shows icons and all paths accessible, when focusing on a file, it shows the head of the file. It's a really smart UX integration. It would likely have taken me weeks to months of playing with my config to have a small subset of what is available in the distro.
They're also very configurable, so you can override any key-binding you want, add or disable plugins.
I guess it depends on how you want to spend your time :shrug
SpaceVim has a really slick install and gives me all the LSP and a nice collection of plugins. And someone else is maintaining it!