Raise to wake and changes to the notifications is awesome, though I wish spotlight did more, like read my email and show me upcoming bills, like Google Now does but keeping that info on the phone.
I like the photo additions, but not big into pictures, so yeah.
Apps being open to developers is great though I'm sure limited. For example if I say "Hey Siri, play Top of the line by Rittz, it'll open Apple Music." (Of course) but I don't think you saying "Hey Siri, play Top of the line by Rittz on Spotify," would work like it does on Android phones. Likewise, I don't think you can get directions to a place using Google Maps using Siri either.
iMessage stuff... Meh. Just more bloat. Wouldn't surprised if if by iOS 12, that a lot of that stuff is silently removed. Honestly they should have just kept iMessage as it was and expanded it to Android. Done.
Wished dark mode came to iOS
Would like Apple to give attention to other apps like GameCenter podcast and calendar
Don't like the new news icon. I use that app every day and accounts for 19% of my battery life usage almost every week.