iMessage is what keeps me. I have to travel a great deal, make calls/messages to and from out of country. When around half of Americans have an iPhone, and only use iMessage/FaceTime because they're built in, it hurts not to have them.
as for features regarding the gentleman above. I was impressed, but I'm not the target consumer for these features. I can understand why others are underwhelmed.
Street View - Already existed with competitors, and limited utility for me.
Apps launching 2X faster - I don't have an issue with performance now.
swype - don't prefer it.
location services privacy - tough one. i'm pretty cautious with telemetry as it is.
Sign in - depends on developer support. Something tells me the devs I'd want to use it will not, and the ones that do, I didn't have to worry as much about.
more intuitive photo editing - I do what little photo editing off device.
live radio listening - already do that through apps, and i thought that was homepod focused.
Siri natural - i don't talk to siri. i give some short, specific commands when I must. Her response accuracy has improved, but not enough. Fix that before fixing her enunciation.
Airpods - Don't have them. Don't intend to. Not noise isolating. I need them to be similar to ear protection foamies in the places I go.
Your take aware was Dark mode? - Apple seemed to be very proud that they reinvented the black screen and green blinking cursor.