This phone is really amazing, I love everything about it! The camera has incredible quality, especially with all the features (including high speed capture). 4K video, seriously? That's awesome. The dedicated camera button is awesome and handy when wanting to load the camera quickly.
The processor and 3GB of RAM helps keep the phone running snappy and smooth. Very awesome.
The FEEL and LOOK of the phone just screams high-end. Compare to my friend's plastic band-aid Galaxy S5 is a joke.
Waterproofing is amazing. I even took it to the ocean for kayaking and was fine. It stayed in my pocket and got a little wet (never submerged), and I just hosed it off afterwards (it was kinda funny doing it. I even got comments from passers-by).
The noise-canceling headphones are like magic. Now I can focus on my podcasts and audio books without all the loud noise from the roads and bus. Again, magic. And they feel great, even with my tiny ears (I normally wear Bluetooth headphones because I don't like in-ear earphones).
The magnetic charger on the side is so handy! No need to open the USB flap to charge.
The lanyard hole is a bonus. I can keep the phone handy when active outdoors.
Front-facing speaker is great. No more having to cup the phone with my hand to hear better.
The notification light is nice. Not just a simple boring single dot of light, but a cool-looking spread of light.
The user interface and stock keyboard is actually kinda nice. I came from using Go Launcher and SwiftKey X, and I like this (maybe not necessarily better, but still good). Although the text selection is kinda funky.
I like that if I hold the power button, there is an option to take a screen shot (I like it better than Volume Down + Power).
I like that it has micro SD card capability! What's wrong with some non-Apple manufacturers removing this? Hello?! This is a must!
I like that my phone doesn't say Verizon/T-Mobile/AT&T/Sprint on it!
The flashlight list kinda weak, but still good. I do miss having a quick button in the notification tray, but the widget button works fine.
The NFC is cool, I used it on the free bonus Bluetooth stereo that came with the phone. I haven't used the Throw feature, but I'm sure that's nice too.
And finally, I LOVE the battery life! 2.5 days!
I'm definitely happy to have paid top dollar for this phone.