Short answer: No. It depends on the complexity of the project, and whether or not you are counting the time to learn CoffeeScript. If it's a small project, yo

Short answer: No. It depends on the complexity of the project, and whether or not you are counting the time to learn CoffeeScript. If it's a small project, you won't notice a lot of difference. But, if you know CoffeeScript and use it on larger projects you'll notice it's easier to not repeat yourself, and you can get things done a lot quicker. I think that in large projects with lots of styles and code to manage, tools like SASS can really improve maintability and extensibility. The speed for which you can make improvements in the future is greatly increased. Personally, I think SASS + Compass is a more robust solution than CoffeeScript.