LOL I do like to get the most out of my phone. It doesn't get heavy use really. Use a pc at work and tablet at home and use WiFi instead of mobile data where possible. I do a lot of work after rom installation to disable/remove crap, stop apps running in the background and restrict radio usage! I do the same with all my devices including pcs. I also tend to buy a new battery every couple of years when I start to get worse life. They are dirt cheap on Aliexpress.
I've had zero camera issues apart from being unable to use the lockscreen camera with a pattern as it breaks the whole thing and needs a reboot. I just changed the shortcut to load the other camera and it makes me do my pattern unlock before I can take a photo. Not a massive inconvenience. Opencamera is really good too if you're having stock app problems. The camera isn't great anyway.