So, after some use, the battery life could be longer, would have been great if it was since the controller is pretty nice; how that will affect you depends entirely on how you like to play games. If you find yourself playing for long hours, say more than 6-7 hours in a single session then you can probably skip, specially if it will end up being your sole controller.
It is fine for me due to how long I play in a single session but I wouldn't have complained if they had given us a longer battery life! Hopefully the next iteration will give us more time, because it really is a nice controller.