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Had my iPad 2 on ios 6 because I did not like iOS 7.
Then a week ago i bought a new iPhone 6 and it seemed to work ok, and 3 days later my pad died and had to be updated to iOS 8 (begrudgingly) and it was terrible. I did a few mods and a hard reset etc and now it works ok (no real complaints).

Apples biggest issue is that much of its hardware requires too many different vendors to supply it with hardware and then we get issues like we saw with the ram in iPhones a few weeks back. Where 2 different types of ram were being used in the builds)
 
Every person is going to have a different experience with their iPhone and their software. For me, iOS 8 has been the worst version I've experienced.

I first got an iPhone 3GS in March 2011 with iOS 4. I had it until I got my 5s in November, 2013. I had no significant issues with iOS 4, 5, or even 6. When I got my 5s, I had no problems with iOS 7.

Once I upgraded to iOS 8, I've run into more major issues than ever before. With iOS 8, 8.02, 8.1, and 8.1.1, my WiFi was completely broken. I would have to reconnect every few minutes and many times, I just shut off WiFi entirely if I needed to use the internet with any sort of reliability.

iOS 8.1.2 mercifully fixed my WiFi issue, but I've had continued issues with touch responsiveness, orientation issues, video playback in the YouTube app and Safari, and a noticeable drop in battery life.

What's so difficult about any type of continually upgraded software is that some people will have the best experience and others will have the worst. For some people, an upgrade will restore a broken device to one that is fixed and better than ever. For others, it'll nearly brick the device.

With that being said, one thing Apple does need to improve on is their ability to keep features that work while upgrading other aspects of their software. Apple has had too many instances (especially recently) of crippling features that were never issues before. For example, it's hard to accept orientation issues when that was one of the distinguishing features of the ORIGINAL iPhone. If there ever was a time for there to be widespread orientation issues, you would think it would have been back in 2007, not 7 and half years later when such a feature should have been perfected.
 
It isn't about nothing. Maybe you don't use the same or as many apps as I do but my experience is that every day I would say half my apps crash on launch. Usually they work on the second launch. Sometimes I have to force close them by swiping up in the app switcher.

Every app that uses iCloud takes up to 30 seconds to launch. I've lost data in a number of apps due to either iCloud or iOS. I don't know which.

Every couple of days my iPad re-springs and occasionally reboots. All this is on a brand new iPad Air 2 128GB.

On my iPad Air the screen becomes unresponsive when a call comes through so I have to chase down my iPhone.

So please don't tell me I'm whining. These are real problems that need to be fixed. It amazes me that people think if they didn't see a problem it doesn't exist.

Wow, it really does vary per device. I have a 64GB iPhone 6 with only 1GB left and I don't experience re-springs, nothing like that. Actually, I haven't experienced any major issues, iOS 8 has been brilliant for me.
 
Wow, it really does vary per device. I have a 64GB iPhone 6 with only 1GB left and I don't experience re-springs, nothing like that. Actually, I haven't experienced any major issues, iOS 8 has been brilliant for me.

It has gotten a lot better since 8.1.2 but still some issues persist.
 
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