I love using VIM to edit, but stuff like the following makes it hard for me to resist switching.

"ATA makes typings files almost invisible. A TypeScript language server that has ATA enabled watches your package.json files and automatically installs the typings files of all dependencies in a cache on your file system. It does the same when it finds references to well known client-side libraries. When you then invoke IntelliSense, the TypeScript server uses the typings files in the cache."