Kies is so slow, bloaty and buggy its unreal sometimes.
Odin is excellent and so easy to use, just need to make sure your using the right version to what your flashing. I really recommend you updates via odin instead of waiting for the OTA
Kies is an embarrassment to Samsung.
I added an edit to my post as I was reading through the thread, I'm gonna root, update the German fw and stay stock tw, at least for a month or two.