I have always, always, always gone back to vim. Fast, efficient, clean, portable, heavily-featured, strongly customizable. It's trivial to call shell commands or inline python code generation.

I glanced over much of the presentation, and none of it was about the editor itself as a user would see it. I'm impressed and glad for the technical investment, but to be even a consideration for a replacement, I need a focus on how it's supposed to be an improvement, not just a substitute, for vim.