To expand on your second point. Debugging coffeescript has become pretty easy with Chrome and Firefox supporting source maps. With livereload and coffee's autoc

To expand on your second point. Debugging coffeescript has become pretty easy with Chrome and Firefox supporting source maps. With livereload and coffee's autocompile (watch & compile flags) I basically skip the build steps. For me, coffeescript was similar in syntax to Python (our main language at work) and it makes everything much cleaner compared to JS for big projects.