I returned mine and went back to the 8+ after using mostly this thread to pinpoint my problem. I bought the phone last friday afternoon. From midday friday until monday morning when I returned it, I had a massive migraine and nausea like crazy (great weekend, eh?). Well I went back to the 8+ and could immediately tell the difference. I was gutted knowing I had to take it back but it just wasn't worth the pain. Really sucks because I absolutely loved everything about the phone. Oh well...here's to hoping OLED gets better the way LCD did.