I left for a weekend trip to the mountains as soon as I signed the papers and got mine, and to be honest, it's a great phone, and has some great features (and certainly feels fast in many areas), but is it worth an upgrade over the 5? That's really hard to tell you...I think it was, but my wife kind of feels like she's got the same exact phone (because she isn't using the finger print scanner at all really). She said she loves her phone, but doesn't feel that it's much different than her iPhone 5 was...I can agree in many ways, it feels like the same exact phone, but in other ways, you can definitely tell this one is pepped up, the camera is chalk full of features now (the flash still sucks in my opinion), and the finger print scanner works really well if you use it!
I see the differences for sure, my wife said she does too, but she doesn't feel the phone was a significant change at all...which may or may not appeal to you.