Did a full battery run today and was quite impressed. Running Skydragon 4.2.1 with SD Kernel 3.0.4.
I'd say it was quite heavy usage. Lots of screen on time and watched numerous Youtube videos. Also lots of Google Play Music, including some streaming (most of my music is downloaded to my device though). Bluetooth always on as well as I use a Fitbit Flex
Greenify running as well.