Still needs a decent JSON viewer before I start on the tutorials. It's a problem that once code is evaluated, it turns into Javascript. JS2Coffee isn't a satisfactory solution. I suspect teaching some Javascript, especially stuff from Crockford's The Good Parts, will be necessary.
The advantage of course is it can be compiled and run natively in a browser. The syntax is simpler, but there are corner cases. Though plain javascript also has corner cases CoffeeScript doesn't have, and js syntax is more intimidating.
