For me, Drupal is one of the granddaddies of the open source CMS world. While it might not be the oldest by any means, it is the first one I tried, and loved. Even at the time, I heard a lot of complaints about how impossibly difficult it was to get to grips with. While I never shared that sentiment, and setup a reasonably active blog-like site for myself and some friends, which served us well for a few years, this accusation of unfriendliness towards the average user has continued to plague Drupal. So, it came as no surprise that when they set out to plan and design a whole new major version of the software over 3 years ago, they made the usability their main mission.