My battery did seem to drop in percentage more quickly after the first few days, but the actual time off the charger seemed the same. Around 24 hours for each full charge since last Thursday.
I really think the battery and system are just calibrating over the first few days, but I started paying attention to battery usage yesterday.
Location access was the bulk of my Google Services (biggest drain after screen) battery drain, but then after turning that off Android OS and Android System were the bulk of the drain. There was some wakelock issue going on there, so I did a factory reset to nail it down.
As of right now, after 1.5 hours screen on time I have 85% left. Seems fine to me, that's on track for over 6 hours screen on time.
My best stats were from Monday:
Verizon
25.5 hours
6.5 hours screen on
WiFi and 4g on