For years, we've been trained to just touch the screen and now we're being taught to press it. I have a 6s and don't really use it outside of the calendar app. Being able to press the Apple calendar or even Google Calendar, is clutch. I keep all my apps in one folder besides messages, Safari and settings. I then have the apps and folder in my toolbox and pull down on spotlight to type and search for my app. With iOS 10 allowing me to 3D Touch the folder and remove notifications from apps inside the folder, THAT I will use. That is clutch.
I'm definitely looking forward to more shortcut options for 3D Touch. As it stands, anytime I want to send a text I have to open the full app because it only offers the last three recipients on the 3D Touch shortcut. Same with Phone. I find myself rarely using 3D Touch so I am definitely eager to see expanded support for it.