I still don't have an iPhone 6 Plus but did make a mock up from a cedar shingle that I have carried around, handled, tested pockets, etc. I ordered from Target because I will save on a discount but am starting to get a bit impatient. :(
The optical image stabilization and larger screen for post photo editing are the two biggest reasons I want it. I use an iPhone more as a camera and Internet device than a phone.
The mock up next to my iPhone 4S