I'll comment here once I can actually download the damn thing.
I've heard that Apple is quite literally spending thousands of dollars per second right now on just bandwidth.
My upgrade went pretty flawlessly. Started on it when I got back from the driving range, and while it did take a little longer that previous upgrades (having to do iTunes/etc) I didn't encounter anything "strange".
That being said, maybe it's because I've only had my iPhone a little over a year and a half, so most likely I still remember what a pain in the a$$ it was every time my Blackberry had an update. That was generally a cluser-___. Hopefully updating my wife's iPhone and the iPad will go smooth as well.
I left the things I agree with. The 9 items thing I tweeted about (though I incorrectly said 12 - the limit used to be 16 on an iPhone 5). The 9 limit is awfully constricting. I'm going to delete some things.
One thing to add - the parallax effect with the wallpaper and the icons is barely noticeable. I want it to move about 3x more than it does. Kind of disappointed in how little effect that has.
I don't get the folder complaints. They're now nested folders, so you just swipe inside the folder to get to the next "page" of apps, allowing an effectively unlimited amount* in any given folder rather then the previous cap of 16. So instead of "Golf", "More Golf" and "Even More Golf" on my home screen, I now just have "All Golf". Definitely an upgrade, to me?
* Though, obviously you wouldn't want to swipe 20 times. The rabbit hole can go too deep ...
That's the complaint.
I had ONE screen, and to get to anything, I had to tap at most twice: once to get into a folder, and once to click one of the up to 16 items I could see.
Plus, I KNEW where everything was, and now that's all changed. So now I can not only rely on where things were (I'll get used to that, eventually), but I can't even SEE everything without swiping.
If you are all on same account (iTunes Account) the numbers will appear in Settings ->Messages, you need to make sure that each phone is set to only send to the appropriate number. This is a bigger problem with iMessage turned on.