WOW! First of all, aside from everything else, the SIZE is the one thing I am absolutely in love with! THIS is how a phone should feel! Sure the 6 plus size was great for movies and gaming and stuff but man, as a phone, it was kind of awkward to hold and to carry. I feel like the regular 6s is PERFECT for regular everyday use. It's not mega tiny like the 5/5S but it's not gigantic either. In my honest opinion, I think it's the perfect size. The extra RAM. Holy moly. My 6 Plus lagged like crazy doing anything. This 6S just flies compared to it. I should mention though, I haven't installed all my hundreds of apps yet and it's only one day of use so i'm kinda jumping the gun here but I can already tell, theres no regular stuttering that I experience from simple things like just opening settings or mission control or whatever. Also, things open up almost instantly. That's something that was really bothering me with my 6 Plus, it felt like I was using a computer that had a really slow CPU and and low RAM but with a giant monitor. I will take speed over display any day of the week! I am still keeping my 6 Plus, it's going to be my backup phone and it will still be nice to play games and stuff on it but man, I am so happy I jumped to the 6S. Oh and Live Photos are pretty awesome! I feel like it's something I won't fully appreciate until years from now and i'm looking at old photos that had it enabled, it will be nice to kind of live in that moment so to speak. 3D Touch is also pretty cool. I feel like with time though, it will get better. But yeah the speed gains alone make this an awesome phone. Thank you Apple, I still love your devices and you still have that magic!