I'm loving mine. As I said in another thread, I wasn't expecting to like it this much. It's amazing to me how much a little more screen changes the whole cell phone experience, and this simultaneously gives credence to all the Android folks yelling about screen size. Maybe they were right? I don't know. Maybe it's just time. Regardless, amazing feel in the hand. As is the Apple way, the hardware and manufacturing is THE best in the world. I've also experienced incredible call quality on the handful of phone calls I've taken/made over the last few hours. The thing is buttery smooth and so damn quick. I'm very, very happy with it. 9.5/10 for me. I'm deducting .5 for the protruding camera, which the reasons for have been talked to death. I'll take it for the slim-ness of it all. Just incredible technology once again from the leaders.
EDIT: Since I posted this, I have since returned my 6 and gone back to the 5S. Some of the reasons are the same as others. I tend to roll naked with my phones, and I got the protruding camera stuck on random strings in my pockets a couple times. I don't know how that happens, but it did. Maybe my pants just suck and need replaced. The 6 runs and does all the things that I expect from an iPhone. For that, it's fantastic. Same as the 5S is fantastic. I just don't take in a lot of video, don't take a lot of pics. My phone is pretty much for communication. I felt myself trying to use the 6 one-handed, which is totally do-able...but, I was still having to slide that thing around in my hand a lot and this drove me nuts. And yes, I'd use the pull down thingy. I also had a lot of trouble getting used to the lock on the right spine. No bigs...and I know that's where phones are going. I just feel....for NOW, the 5S is a better device for me. I also feel, however unfounded this is, that the 6 is fragile somehow. Maybe it's the thinness of it all. Idk. It's still a great phone though...and I'm sure I'll be back on it or something like it someday. When I don't have a choice of course.