I don't know about this, the concept is simple in that you just press 3D touch and get a shell menu but for the most part I can get into an app and into whatever feature I want with the same two presses.Sometimes I find those those ‘Who rarely use it’, actually don’t know how to use it. Or they don’t take advantage of all the core functionality that it has. And I blame Apple, because they never really demoed 3D Touch except for the 6s keynote and most consumers have no idea what it does. Which is unfortunate, because it really is a useful feature for those who do take advantage of it through iOS stock applications, peek and pop for photos and even third-party applications.