Yes I will be getting it. It's just a matter of whether I will get the 6S or the 6S Plus.
I like the 6 Plus for the incredible battery life mostly. The screen size also makes it easier to read books and watching videos is a more pleasant experience. It's really underpowered though. It clearly needed more raw spec power than the 6 as it lags and/or freezes much more often than the iPhone 6.
But the 6 is the absolute perfect size for how it fits in my hand. It also stays in my pocket comfortably while running whereas the 6 Plus bounces around too much and has to be carried in hand. It also has better performance.
We'll see in September though. If Apple gives them identical specs again I might lean towards the 6S for superior performance and give up the 6S Plus battery life.