Low light is night and day improved (pun intended)
Shoot a low-light photo side-by-side. At least for me is was a vast improvement
This is a very poor review from Consumer Reports. There are plenty of independent reviews which are infinitely more thorough and they reach very different conclusions. My iPhone 7 plus should be with me tomorrow but I've already compared my daughter's iPhone 7 with my 6 and it is substantially better in relatively low light. The colour gamut improvements alone are worth it.
Low light is night and day improved (pun intended)
Shoot a low-light photo side-by-side. At least for me is was a vast improvement
I guess the best way to decide is to look at the pictures ourselves. One good thing with these type of review is that there are plenty of pictures from all the different smart phones. I looked at a similar review by Cnet with tons of pictures that someone else posted here, and the improvemenr are very easy to see. I dare say that 7+ pictures are better than S7..