I've been using neovide for a few months now, and my biggest gripe is that there's not an easy way to automagically open a new file in an existing neovide window as a tab. With macvim I could do `--remote-tab-silent` and it was handled, but neovide seems to want me to use some kind of background server and a bunch of other hoops to jump through.
And I already use Neovide as a GUI pretty often.