I only have one issue from the OP's list - the not so good photo sharpness and noise. I don't know what factors in here, but some photos come out very good, but some are not so much.
Anyway, here is a question to everybody. I am not sure if it was intentionally designed so to make autofocusing easier, but my dedicated camera button is very easy to HALF-press (very little resistance). It does take a firmer push to fully press it though. Can someone check if your camera button is also easy to half-press? I would hate to return my phone because of this, but I am afraid that the accidental half-presses may do something in the background and thus drain the battery.
Speaking of battery life, it's been very solid in my case. I just make sure that no app is running in the background and has gotten almost two full days (moderate use) out of my first charge with 29% remaining. Overall, I am happy with the phone so far.