I did some simple tests, and frankly the generated code is ugly, certainly by comparison to vanilla CS. Gone is the "oh I see how it did that, it's just a Javascript version of my Coffee!" It's now more like what C++ used to look like when compiled to C (remember cfront? probably not. Be glad you don't).

As someone else said, if you avoid await/defer entirely, it seems to back off to exactly what Coffeescript does, so there is a nice progression path.

code: https://github.com/danx0r/testiced#readme