I saw MKBHD's video today on it, and I like the design. It's a little odd, especially the top of the screen having that little dip for the sensors. Not to mention the vertical camera just looks strange to me. But the glass back looks really nice, and overall I'm impressed. The lack of a headphone jack doesn't bother me since I use wireless headphones anyway. My only potential (read, potential) dealbreaker is the possible lack of touch id. I get that they're apparently going all out with facial recognition, but I'd much rather prefer touch id. It's just a lot smoother in my opinion. Hopefully there is touch id.
Then again, idk if I'll even be able to afford it when it comes out. Maybe when the 8s does.