For me personally, they hit it out of the park -- except for the notch, which seems like a complete showstopper to me at first sight. Maybe it's not so bad in practice if games and full-screen videos keep that whole strip solid black? But almost all the screenshots are of fullscreen apps, so it seems Apple thinks it looks a bit ungainly too.
I imagine most games and videos can be run in 16 by 9 aspect ratio and that'll draw black bars above and below thus hiding the notch anyway.
Games have never showed awesome support for Apple's weird decisions, so I guess I would expect some issues there, unfortunately.