Idle time is important to me, as I'm in a marginal LTE signal area, and the "17 hours on battery" is from charging the phone to full, while powered off, and then powering on.
I would not see the same battery life while at work, where signal is less than -93dBm, which is worse than what I'm getting at home. Regardless, this thread was only a sample result for comparison.
As with my LTE Note, I'm noticing that the screen is most taxing on battery. However dimming the brightness a bit more via the "Screen Adapter" app seems to be helping a bit.