I can't believe that there are STILL bugs with creating Reminders with Siri and then trying to change it. For instance, say "Remind me to get a haircut at 10am" and then "Change that to 9:30am" or even "Change my last reminder to 9:30am". It acts like it knows what to do, sometimes... but then gives you blank output, and doesn't change anything.
Also, HUGE bug since iOS 7 where the "saved state" of an app screen (shown as a card in the App Switcher) differs between portrait and landscape mode. Funny, it works as expected on iPad but is borked on iPhone. For instance, go to iMessage in portrait mode and select a conversation from Joe. Now exit iMessage back to the Home screen. Rotate phone to landscape, launch iMessage, then navigate to a message from Laura. Exit iMessage back to the Home screen. Rotate phone to portrait. Double click home button to bring up the App Switcher. It should show the saved state (card) of iMessage as the conversation from Laura, right? Since that was the last one I viewed. But no, it shows Joe, until you tap on it and then it switches to Laura when iMessage comes to the foreground. Same thing happens with tabs in Safari, etc. It seems like an App Switcher error.
What's the point of filing these bugs if Apple won't fix them? I found another huge bug in creating reminders with Siri, where if you had two people in your phone with similar names (e.g. Kerry and Carrie) and corrected a reminder so that it was about the correct person it would create two reminders -- the correct and incorrect one, instead of throwing away the original misinterpretation. That bug persisted from iOS 8 (it was fine in iOS 7) all the way to iOS 10 betas (finally fixed!) even though I reported it over a year ago. How Apple couldn't notice that there were major issues creating reminders if you have contacts with similarly pronounced names, I don't know... that's just so basic.
Honestly, I'm not a developer and I find bugs in iOS all the time just from regular day to day use. It's crazy, I never used to encounter so many bugs in Apple software and I've been a Mac user since 1991 and iPhone user since 2009. Their quality control on iOS is poor, and it seems like they don't even listen to the bug reports unless it's something really egregious that will affect 95% of users and might get Walt Mossberg to complain publicly.