So what if the camera isn't the best, does that mean it's going to be a bad camera? Of course not. The camera on today's flagship phones are so close in quality that most people won't notice one from the other. Unless they plan to print them at large sizes, it just frankly doesn't matter at this point that one has a touch more noise at the pixel level than another.
Not to mention most camera review tests are pretty subjective and can be manipulated even when using auto mode. Once you get into using the manual controls (which LG does an excellent job with), all bets are off. So yeah, don't concern yourself with the camera and reviews calling it bad.
For the screen, that's mostly going to depend on your personal preferences. I thought the N7 screen was ok, but I still preferred my G4 LCD in terms of color accuracy. I've heard a lot of people on here that played around with demo V20's that sounded quite impressed with its screen, so I wouldn't be so quick to write it off.
Battery, I've been burned twice by non-removable batteries. Figuratively speaking, that is. Well, three times now if you count the N7 that was asymptomatic but returned anyway during the first recall. From now on, any phone I get will have to have a removable battery. SOT be darned! With quick charging and aftermarket extended batteries, I'm not concerned in the least about stock battery life. I realize I may be in the minority, but I've had nothing but problems with sealed batteries and they will have to drag me kicking and screaming back into them.
The bootloop issue is a slight concern. Hopefully they have things figured out, but I think phones are becoming too fragile in general. At this point I pretty much assume all new models will have a risk of design flaw, so it's a matter of pick your poison.
Sorry this turned into something of a rant, but it's perhaps a new perspective if nothing else for you.