- Neomake ( https://github.com/neomake/neomake ) which I use for async linting. I know this is now working in Vim 8, but I've been using Neovim for a while and this was exclusive for a while.

- Vim-test ( https://github.com/janko-m/vim-test ) uses `:term` for running your tests from within vim -- this is most useful because I have a shortcut to test from current editing file, etc. I know this is also possible in vim now.

- Mapping Meta keys in terminal -- opens up a bunch more shortcuts that weren't available before

- `inccommand` This I believe is only in neovim, and likely not enough for anyone to switch for

Cons: - Not in distros, gotta install manually via their PPA