Most people are on Verizon here. I don't connect to the wifi (because it's restricted), and I keep my GPS off. Today, it's doing much better, but still not great. One thing that's different about today is that I turned off the fingerprint access to the phone. Normally I like to keep it activated while at work, but today I forgot. Tomorrow I'm going to try turning it on again and see if that changes the battery usage.
Screen and phone idle are typically the biggest battery usage for me while at work, but not today (14% and 7%). For whatever reason, "Maps" is the biggest usage today at a whopping 38%. The strange this is, I haven't used maps for anything!!