I'm really torn about whether to attempt an exchange on the phone.
Many have stated that the nature of SAMOLED is that it will have streaking on low light levels. But, it's simply impossible to know whether what I'm experiencing is acceptable levels, or too much.
The only way we can tell is to report findings to one another.
For those of you who this relates to, could we try some tests with constant variables? How about this: Turn your screen brightness to its lowest setting. Open Gmail, go to your inbox, and focus on the white background. As you scroll around, can you see a grid-like pattern in the background that does not move?
Mine is definitely there and it's much much more noticeable when I'm using the phone at night (e.g., prior to going to bed in a dark room). The grid is slightly off-kilter, so the lines are not parallel with the sides of the screen - which flares up my OCD even more.
I don't have terrible banding or color changes. Just a mostly-uniform grid that covers the entire screen.
Honestly, it's not a huge issue - especially during peak hours of use. But when I use the phone at night, it is very frustrating, as it is extremely noticeable.