Well, having both iPhone 7+ and Samsung S8 in my hands right now, I will reply
Spot on. The hardware is beautiful to hold and look at. There is are two big issues for me, and they are deal-breakers as far as S8 is concerned.
The first is with the display accuracy. I'm a professional photographer. Yes, I understand the difference between the iP7/7+ displays and the AMOLED display on the S8, and I actually owned S7 before switching to iPhone a few months ago. But photos on the S8 are way more saturated vs. the iPhone 7 or 7+. It's like Samsung dialed the saturation slider up to 11! Putting the two screens side-by-side and viewing calibration photos and any photos of mine (
http://andywillia.ms) convinced me that there's no way I can use the s8. iP7 and iP7+ screens are accurate and true. Period.
The second issue has to do with scrolling. If you scroll an app (like Twitter or NY Times) on the S8, the screen jitters like crazy when you are scrolling. You can see herky-jerkiness as your scrolling. Scroll the same apps on iP7 or iP7+ and it's smooth like butter. S8 is going back, and I'll keep my iP7+. By the way the same happens with Safari or Chrome on iP7+ vs Chrome on S8. The scrolling using the browsers on iPhone is buttery smooth.
What I really want is iPhone 7 size with iPhone 7+ camera, and no or little bezels (larger screen). So I guess I'll be happier come end of the year when Apple has a new iPhone