The edge is amazing.
Uber quick access to all of my favorite apps, camera (and a soft screen off switch).
Quick access to useful tools (measuring stick, timer/stopwatch, flashlight, voice memo)
Nighttime clock feature is awesome.
And the memory game is totally addictive, watch out
Other than that, huge phone, but the one-handed swipe makes things easy when you can only use one hand.
Performance is lightning quick for everything, screen is stunning, camera is incredible.
Battery life seems good, but I still bought the extra battery with external battery charger for $19.
I activated Voice over LTE. Seems good, will be more useful for video calls once others have that feature activated (and everyone will be forced to soon enough)