Generally it's very good. My only complaint may be true of Android in general but I would say it's inconsistency. Some days with light to moderate use it sips battery at 1-3% an hour, other times it's 2-3x that with seemingly no difference in usage. Ironically, the 2 worst processes for battery drain are Maps and Google services (which I assume is Now or something similar). Whenever I have abnormal drain its virtually always one of those two.
That said, unless you're gaming, watching movies, or using turn by turn nav alot, it's easy to make it through the day without a charge.