A specific use case where Bun beat the pants out of Node for me was making a standalone executable. Node has a very VERY in-development API for this that requires a lot of work and doesn't support much, and all the other options (pkg, NEXE, ncc, nodejs-static) are out-of-date, unmaintained, support a single OS, etc.
`bun build --compile` worked out-of-the-box for me, with the caveat of not supporting native node libraries at the time—this 1.1 release fixes that issue.