I'm the proud owner of a new iPhone 6S.
I've gone most of my years with iPhones without protective cases. And never really had any incidents... until last week, when my iPhone 6 dropped into some water in the sink. A few days later in a rice bag to dry out, and the phone came back to life nicely, then must have short circuited, because the display died and won't come back.
So I now have the 6S.
I really like the 3D touch, and the increased speed with this phone.
Also, I did the smart thing and got the 64 GB instead of the 16 GB!
I hated the 16 GB because I kept running out of space.