I want to go back to ios 7.1.2?

I just downloaded ios 8 yesterday on my iPhone 5s and I'm not really liking it. It's buggy and it slowed down my phone. Also a lot of my apps keep crashing. I found out a way to do it but I would have to restore my phone and then I can recover everything from iCloud. But I want to know if iCloud backs up my notes and Wi-Fi passwords. What exactly does iCloud back up?

Do I have a choice between iOS 7 and iOS 8?

I'm getting an iPhone 5s October 3rd and I wanted to know if I would get to choose whether I have iOS 7 or iOS 8. I heard iOS 8 sucked and I would really like to keep iOS 7.

IPhone 5S contacts keep disappearing?

I just got a brand new iphone 5S yesterday and for some reason I can only have one contact. Every time I add another contact the one before it disappears. Why is this happening, how can I fix it, and is anyone else having this problem?

Can You Reserve The iPhone 6?

Can You Reserve The iPhone 6?

Added (1). i live in uk and i was wondering if i went to the apple store could i reserve one or could i do it online or by the phone. Also do i have to pay before

IPhone 6 US Cellular shipments?

So I called US cellular the other day, and they only got 5 iPhone 6s a store to sell. They said they are expecting another shipment next week. Does anyone have any idea how big they will be and when it will be?