So far, I am thoroughly impressed with the S8+. I have an iPhone for work and bought a Note7 last year for my personal usage, went to a S7Edge (hated it), then to an Axon7. Well, sold my Axon7 and picked up the S8+ this week. Also bought the Gear S3 Frontier for $50 from AT&T and they are both great.
The battery life is impressive, display is awesome, and outside of running Nova, I'm using the Samsung apps, which are pretty good!
Apple will of course play catch-up, but I cannot see them having the huge number of innovations that Samsung has built into this sucker!