I do not use and see the benefit of the 3D Touch and wish Apple had never actually implemented it. Give me an iPhone with less bezels, less ugly (antenna bands, protruding camera lens) than the gimmicky 3D touch.
I definitely agree about the need for smaller bezels etc, but Apple were never going to make those sort of design changes on an 'S' model. Those models tend to have minor functional changes that don't affect the look of the device, so 3D Touch was an appropriate enhancement. I find it about as useful as other 'S' changes, like Siri and Touch ID: handy to have, but not as exciting as a new design.
My main worry is that the iPhone 7 may by another 'S' judging from the rumours that it won't look much different from the 6S. That would be very disappointing.