Hello, I have a new unlocked At&t Galaxy Note that was bought from Amazon in brand new condition with 4.0.4 ICS fresh out of the box. It is unlocked and rooted and activated on T-Mobile's prepaid plan. I love ICS with it's features, but a question has been pondering my mind. Ever since the official 4.1.2 update from At&t came out, I have heard lots of issues with lag, battery life draining, and other issues. I was pondering about updating my note via Odin or Kies, but now that I think about it, my biggest concern would be the battery life of my phone, as it is excellent right now. So is the update worth it? Share your experiences.