Personally I'm thrilled by the fragmentation in this space -- I've been using Vim since 4.x, and vi before that. I've never found the plugins particularly enticing; every time I try using things that are outside the core distribution, they end up taking more time to maintain than they're worth. Since I mainly stick with the core distribution, Vim has felt pretty stagnant since it got code folding and syntax highlighting, more than 15 years ago. I've been trying alternatives -- spacemacs feels bloated, neovim is still carrying a lot of baggage (e.g. support for vimscript). So far Kakoune is the one I'm most excited about, to the point where I am right now updating my neglected Cygwin installation so I can try to build it for Windows. (Kakoune needs unix-style select, so native Windows builds are unlikely.)

> By feature complete I mean autocomplete, error detection, built in one-button-runs, automatic config/sane defaults.

By and large, I find features like these distracting to the point of unusability, which is why I like living in stripped-down editor land. Different strokes for different folks.