It’s reminding me both of freedom that Python gave me when I first turned to it after Java. And bit of my experience with Erlang. ( If only it had Erlang’s Actor model and pattern matching arguments … )
The other good effect of this, CoffeeScript is making me more comfortable with investing my time writing serious logic on the browser-side. Which is where it should be, given the requirements of modern applications and that the browser is becoming the default GUI.