It's generally alright, just can be kind of a nuisance. You can get into this scenario where you forgot to charge it the day before, and now when you sit down to play you can't and need to charge it. Happens more than I'd like.
It's just weird cuz the PS3 controller had like a 30 hour battery, dunno what happened here. Guess like Smas said, could just be the touchpad, or maybe the really bright light on each controller. Dunno how much energy those things use.