The camera will be my decider as well. If I have to mess with settings to get good pics and can't simply tap and shoot, I will return it. Opinions are all over the place, so the best thing is testing for self. Seems LG has not optimized their photo software for auto and are relying too much on manual. I have a camera with a real zoom lens that I use for manual pics.
Phone camera to me is a convenience and having to mess with manual for photos is far from convenient. Now, if you can edit the auto settings to optimize and then save as default auto mode- THAT would be a good compromise.
That all said, I would take my Note 4 any day over the Edge. The curve makes go Hannibal and Note 4 has same storage. The Note 4 after the MM update takes very good auto pics (low light not as good as the 7E though).