This phone is every bit as good as advertised, it has the best screen in the industry and the display is stunning, vibrant, and sharp. Bixby is not your PA, not even close, but a good start. The screen is a s7 edge screen that is longer and makes the fingerprint scanner out of place. Expect replacement cost to be extreme if you happen to break.
I have been using the s8+ for over a week and so far the phone has amazed me and I have had every galaxy phone. It does not bog down or slow down. Perfect so far.
The device is great but has some stuttering and dropped frames that's just not present on the International S8+ (Exynos Variant). I took my ATT branded S8 back and kept my UK variant, it's just a better experience.