Does seem very decent!
Can't post any specifics right now, but the battery does seem very, very good!
I've had the OPPO Finder (x907) which was a cool device but even with even very minimal use could barely make it through the day.
I'm using the OPPO Find 5 (x909) which has decent battery life for a light-medium user, but would displease most users and all power-users.
With the OPPO N1, I'm still evaluating it's battery life but so far it's ridiculously better than the OPPO Find 5. Perhaps with the CM11 rom this will improve even more. Another cool thing, because the screen is so big...you can turn the brightness way down and the screen is still extremely readable.