Battery life:
First cycle - I don't see any improvements in battery life really. I got 24 hours with 4.5 hours SOT. Maybe it's a bit longer than what I got before but nothing too clear. I'm happy with the battery life so I don't care that much.
Regarding charging speed, I think it was slower than what I had before but I may be wrong here. Need more time testing.
Perfect at mine. If you installed Xposed, then try Amplify. Very nice Module. But with my Xposed-Problem it doesnt work for me.