Slow & Bloated

I highly recommend staying away from this framework and coding your themes and plugins by hand. Gantry/Rocketthemes adds ~1.5 seconds of server side loading time to every site I have tested with. The UI does not follow WordPress standards and creates overly complex methods of customization. There are many other plugins that can be strung together to create all the same functionality that Gantry has, without all the excess bloat.