This is the first theme we have released that was built with SASS and Compass, tools we have become fond of using on other projects. The theme also comes with a bag load of new elements to spruce up your content including things like tabs, toggles, icon fonts and all the usual buttons. It is of course responsive and uses a grid based off the 1140 grid that we have used on several of our themes.
It even has some fancy graph elements for building content with an info-graphic flavour. These elements are built on top of on bar-graphs and Easy PieChart, providing a neat little shortcode to add a fancy graph you your page.
People often under-estimate the amount of work that goes in to building a theme that is fit for public release. Life is easier these days, thanks to our own theme framework on which all our themes now sit. This certainly speeds development and reduces early release bugs (which we always fix by the way).