Solid review man. How long have you had the S4 for use?
I was excited about the S4 just like you are now about 1-2 weeks ago but now that novelty has worn off and my Verizon S4 has many issues:
-Camera scratching (because it is a hump)
-Mushy power button with lower tactile response
-The eye scrolling and air gestures are hit and miss (turned off)
-Stock keyboard is very small and prone to mistakes when typing
-Stock keyboard does not have autocorrect
I thought the Note 2 felt better because it was a little heavier. The heft made it feel better to type on and hold during use for me.
Screen on the S4 is far better than Note 2 obviously and the build quality of the S4 is better.