Espresso is a Mac utility that enables you to write, code, build, and publish your websites with minimum effort. The program supports a wide range of languages, from CSS, CoffeeScript, and HTML to PHP, Python, and Ruby.
Its interface is user-friendly and you have access to a comprehensive help manual. In addition, everything is nicely organized in the panel from the left side of the interface where you can find lists of elements for workspaces and projects. You can use the integrated search tool to immediately locate any information being stored in any of your projects.
Another great advantage of this program is the fact that it offers you support for browser preview.
My only problem with this Mac utility is the fact that it's a bit pricey. You can find cheaper alternatives. However, they might not be as intuitive and feature-rich as Espresso is.
In conclusion, it's up to you to decide, based on your requirements and current budget, if it's worth buying this program for your Mac computer or look for a different solution for building websites.