CoffeeScript doesn't do much to fix the bad bits -- it's still JavaScript, after all -- but it does make the good bits way more fun.

i agree, the biggest fix of coffeescript is not the syntax ( i never saw the JS syntax as the issue), the biggest fix / benefit of CS is:

   Everything is an Expression (at least, as much as possible)

a lot of the hassles with JS just disappear with this "small" change (if applied extensivly)