Just ran Pandora for an hour straight and it used about 11% of the battery in that span, with occasionaly using the screen to see what song is playing. Don't know if this is normal or a good benchmark to know if I;m getting decent life out of the stock battery. Trying to figure out if I need to factory reset to improve battery life (if it even will...).
One side note: I have not had the issue of notifications causing Pandora to close or not resume after getting the notification. I thought I heard of some people have that issue (or was it just Music) but haven't had that happened.