Three years ago, I tried VimWiki but it didn’t convince me. Markdown is not a first-class citizen, but VimWiki’s own syntax. It also uses its own filetype, which made me lose my Markdown customizations. HTML export is only for VimWiki’s syntax, not Markdown. It also stole the Tab mapping I use with UltiSnips.
Then I found Wiki.vim and everything is great. It’s not a filetype plugin, so I can keep my Markdown filetype. It doesn’t overwrite my mappings. It uses Pandoc for export, which is great. It has FZF integration. It has tags, not sure if VimWiki have them too, and I haven’t tried them yet.
I still use it, three years later and now I want to improve some things.