If you're picking up the Xbox One when it releases (whenever that is), this is the controller you'll be spending a lot of time with. While we've posted our own impressions of its design, a video and this infographic, from Microsoft, should help you understand how it differs from the 360's.
In the video, Quintin Morris, a senior product designer for Microsoft, takes you on a tour of the device. Its ergonomics, he says, should allow faster reaction times, even over longer playing sessions.
The video is below, and the infographic beneath that.