> No widgets
Flick to the left from the homescreen or from the notification screen. They have them.
> constant reminders to sign-in
After an update, sure, but TouchID got rid of most of these.
> constant reminders to update
iPhones actually get updated. Reminding you to install them is good practice.
> no double tap/settings seem harder to find
Please explain this gesture.
> Finger print scanner sucks so bad.
You probably (like me) only scanned part of your fingerprint.
> Little annoyances like the animations to change screen take 0.5 seconds too long.
Dig into the accessibility settings. They let you change a lot more than you think you should be able to.