My use today at 12 hrs (730am-745pm) is 1.5hr screen on time auto brightness and slider in middle, 2 hrs playing audio through bluetooth, in an area with no cell signal for about 4hrs, maybe 30-45 mins talk time between Bluetooth and handset. Still have 75% battery left.
Edit: just checked my wife's phone (on factory firmware), unplugged for about 7 hrs. She has 1 hr 40 min screen on time and down to 77%. Not sure about usage, she might have been streaming videos or something.