I don't like the Windows experience of CoffeScript. That's what's holding me back. I think I would use it if it had better Windows support. As far as I know CoffeScript requires node.js, npm and cygwin. Am I wrong?
https://github.com/alisey/CoffeeScript-Compiler-for-Windows
And it doesn't require cygwin. I haven't tried it myself but it's the route I would go.