I'm pretty excited. Well, at the very least excited to see what its all about. September is always a good time for iPhone fans.
I picked up an iPhone 6 on launch day, but was not very satisfied with the tech, and after 4-5 months of using it, I sold it and am glad I did. Was too much for what I felt was a marginal upgrade over the 5s, screen size and redesign aside (though I did find it very comfortable to hold, I did enjoy wifi ac, and I did appreciate the excellent camera).
In hindsight, perhaps it was iOS 8 that soured me on the experience. I couldn't even put the display in landscape mode without it lagging or not responding. So perhaps I never got to see most issues resolved (I believe I sold the 6 when 8.1.3 had just been released or was out for a few weeks). But the 1GB was a big disappointment. I didn't have too many issues with Safari page reloading until I had more than 3-4 tabs open and running another app or two in the background. That was painful when trying to multitask.
From that perspective, for me, the 6s looks to be a solid upgrade should I choose to go with it. Force touch is intriguing and may change the way we interact with smart phones. I am looking forward to seeing how well the new camera compares and also if the "A9" is a marked improvement over the somewhat disappointing A8.
I am still reserving judgment as many others are with respect to upgrading, but if the tech is a big enough jump (and the "S" models usually are) I may bite the bullet because I was a fan of the 6 phone case design. Put in a new black colour and I am more than likely to take the plunge!
Either way, irrespective of my decision to actually purchase the 6s or not, I am nonetheless excited for September!