Seth Clifford goes back to the iPhone 6 after a long time with the Plus:
“I was convinced that the unique size and abilities of the Plus would change the way I use my phone. In my mind, it was large enough to be a small tablet, and I would do so many more things on it, potentially obviating the need for an iPad. That didn’t happen for a variety of reasons.”
As for me, I’m still using the iPhone 5C and think the design is nearly perfect. I wish I had the iPhone 6’s camera, but I’m not upgrading phones until Apple ships a “6C” next year with a 4-inch screen.